diff --git a/link.info b/link.info
index 2b65825..4659140 100644
--- a/link.info
+++ b/link.info
@@ -14,6 +14,7 @@ files[] = tests/link.crud_browser.test
 files[] = tests/link.token.test
 files[] = tests/link.entity_token.test
 files[] = tests/link.validate.test
+files[] = tests/link.multilingual.test
 
 ; Views Handlers
 files[] = views/link_views_handler_argument_target.inc
diff --git a/link.module b/link.module
index 1e9d088..df298b1 100644
--- a/link.module
+++ b/link.module
@@ -465,16 +465,27 @@ function _link_validate(&$item, $delta, $field, $entity, $instance, $langcode, &
 /**
  * Clean up user-entered values for a link field according to field settings.
  *
- * @param array $item 
+ * @param array $item
  *   A single link item, usually containing url, title, and attributes.
- * @param int $delta 
+ * @param int $delta
  *   The delta value if this field is one of multiple fields.
- * @param array $field 
+ * @param array $field
  *   The CCK field definition.
- * @param object $entity 
+ * @param object $entity
  *   The entity containing this link.
  */
 function _link_sanitize(&$item, $delta, &$field, $instance, &$entity) {
+  // As this function can be called multiple times and the item is changed by
+  // reference we need to ensure that there's always the original data to
+  // process otherwise processed data are processed again which might leads to
+  // unexpected results.
+  if (isset($item['_link_sanitized'])) {
+    return;
+  }
+
+  // Store a flag to check in case of a second call.
+  $item['_link_sanitized'] = TRUE;
+
   // Don't try to process empty links.
   if (empty($item['url']) && empty($item['title'])) {
     return;
@@ -515,13 +526,13 @@ function _link_sanitize(&$item, $delta, &$field, $instance, &$entity) {
   $url_parts = _link_parse_url($url);
 
   if (!empty($url_parts['url'])) {
-    $item['url'] = url($url_parts['url'],
-      array('query' => isset($url_parts['query']) ? $url_parts['query'] : NULL,
+    $item = array(
+      'url' => $url_parts['url'],
+      'query' => isset($url_parts['query']) ? $url_parts['query'] : NULL,
       'fragment' => isset($url_parts['fragment']) ? $url_parts['fragment'] : NULL,
       'absolute' => !empty($instance['settings']['absolute_url']),
       'html' => TRUE,
-      )
-    );
+    ) + $item;
   }
 
   // Create a shortened URL for display.
@@ -1261,7 +1272,7 @@ function link_validate_url($text, $langcode = NULL) {
  *
  * @param string $text
  *   Url to be checked.
- * 
+ *
  * @return mixed
  *   Returns boolean FALSE if the URL is not valid. On success, returns one of
  *   the LINK_(linktype) constants.
@@ -1439,7 +1450,7 @@ function link_field_settings_form() {
 
 /**
  * Additional callback to adapt the property info of link fields.
- * 
+ *
  * @see entity_metadata_field_entity_property_info()
  */
 function link_field_property_info_callback(&$info, $entity_type, $field, $instance, $field_type) {
diff --git a/tests/link.multilingual.test b/tests/link.multilingual.test
new file mode 100644
index 0000000..fd7f648
--- /dev/null
+++ b/tests/link.multilingual.test
@@ -0,0 +1,191 @@
+<?php
+/**
+ * @file
+ * Tests that exercise the relative / absolute output of the link module.
+ */
+
+/**
+ * Testing that absolute / relative outputs match the expected format.
+ */
+class LinkMultilingualTestCase extends LinkBaseTestClass {
+
+  public function setUp() {
+    $modules = func_get_args();
+    $modules = (isset($modules[0]) && is_array($modules[0]) ? $modules[0] : $modules);
+    $modules = array_merge($modules, array(
+      'locale',
+      'locale_test',
+      'translation',
+    ));
+    $this->permissions = array_merge($this->permissions, array(
+      'administer site configuration',
+      'administer languages',
+    ));
+    parent::setUp($modules);
+  }
+
+  /**
+   * Enables and configured language related stuff.
+   */
+  public function setUpLanguage() {
+    global $language_url;
+    $this->drupalGet('admin/config/regional/language');
+    // Enable the path prefix for the default language: this way any un-prefixed
+    // URL must have a valid fallback value.
+    $edit = array('prefix' => 'en');
+    $this->drupalPost('admin/config/regional/language/edit/en', $edit, t('Save language'));
+    $language_url->prefix = $language_url->language;
+
+    // Add custom language - as we need more than 1 language to be multilingual.
+    // Code for the language.
+    $langcode = 'xx';
+    // The English name for the language.
+    $name = $this->randomName(16);
+    // The native name for the language.
+    $native = $this->randomName(16);
+    $edit = array(
+      'langcode' => $langcode,
+      'name' => $name,
+      'native' => $native,
+      'prefix' => $langcode,
+      'direction' => '0',
+    );
+    $this->drupalPost('admin/config/regional/language/add', $edit, t('Add custom language'));
+    variable_set('locale_language_negotiation_url_part', LOCALE_LANGUAGE_NEGOTIATION_URL_PREFIX);
+
+    // Enable URL language detection and selection.
+    $edit = array('language[enabled][locale-url]' => 1);
+    $this->drupalPost('admin/config/regional/language/configure', $edit, t('Save settings'));
+    language_negotiation_set(LANGUAGE_TYPE_INTERFACE, array(LOCALE_LANGUAGE_NEGOTIATION_URL));
+
+    // Reset static caching.
+    drupal_static_reset('language_list');
+    drupal_static_reset('locale_url_outbound_alter');
+    drupal_static_reset('locale_language_url_rewrite_url');
+  }
+}
+
+class LinkMultilingualPathTest extends LinkMultilingualTestCase {
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Link language path prefix',
+      'description' => 'Tests that path properly work with language path prefixes.',
+      'group' => 'Link',
+    );
+  }
+
+  /**
+   * Creates a link field, fills it, then uses a loaded node to test paths.
+   */
+  public function testLanguagePrefixedPaths() {
+    $this->setUpLanguage();
+
+    // Create fields.
+    // Field for absolute urls.
+    $field_name_absolute = $this->createLinkField('page');
+
+    // Field for relative urls.
+    $settings = array(
+      'instance[settings][absolute_url]' => FALSE,
+    );
+    $field_name_relative = $this->createLinkField('page', $settings);
+
+    // Check the node edit form.
+    $this->drupalGet('node/add/page');
+    $this->assertField($field_name_absolute . '[und][0][title]', 'Title absolute found');
+    $this->assertField($field_name_absolute . '[und][0][url]', 'URL absolute found');
+    $this->assertField($field_name_relative . '[und][0][title]', 'Title relative found');
+    $this->assertField($field_name_relative . '[und][0][url]', 'URL relative found');
+
+    // Create test content.
+    $url_tests = array(
+      1 => array(
+        'href' => 'http://dummy.com/' . $this->randomName(),
+        'label' => $this->randomName(),
+      ),
+      2 => array(
+        'href' => 'node/1',
+        'label' => $this->randomName(),
+      ),
+      3 => array(
+        'href' => 'node/1?property=value',
+        'label' => $this->randomName(),
+        'query' => array('property' => 'value'),
+      ),
+      4 => array(
+        'href' => 'node/1#position',
+        'label' => $this->randomName(),
+        'fragment' => 'position',
+      ),
+      5 => array(
+        'href' => 'node/1?property=value2#lower',
+        'label' => $this->randomName(),
+        'fragment' => 'lower',
+        'query' => array('property' => 'value2'),
+      ),
+    );
+    foreach ($url_tests as $index => &$input) {
+      $this->drupalGet('node/add/page');
+
+      $edit = array(
+        'title' => $input['label'],
+        $field_name_absolute . '[und][0][title]' => $input['label'],
+        $field_name_absolute . '[und][0][url]' => $input['href'],
+        $field_name_relative . '[und][0][title]' => $input['label'],
+        $field_name_relative . '[und][0][url]' => $input['href'],
+      );
+      $this->drupalPost(NULL, $edit, t('Save'));
+      $url = $this->getUrl();
+      $input['url'] = $url;
+    }
+
+    // Change to anonymous user.
+    $this->drupalLogout();
+
+    foreach (array_slice($url_tests, 1, NULL, TRUE) as $index => $input2) {
+      $node = node_load($index);
+      $this->assertNotEqual(NULL, $node, "Do we have a node?");
+      $this->assertEqual($node->nid, $index, "Test that we have a node.");
+      $this->drupalGet('node/' . $index);
+
+      $relative_expected = url('node/1', array('absolute' => FALSE) + $input2);
+      $absolute_expected = url('node/1', array('absolute' => TRUE) + $input2);
+
+      $absolute_result = $this->xpath('//*[contains(@class, "field-name-' . drupal_clean_css_identifier($field_name_absolute) . '")]/div/div/a/@href');
+      $absolute_result = (string) reset($absolute_result);
+      $this->assertEqual($absolute_result, $absolute_expected, "Absolute url output ('" . $absolute_result . "') looks as expected ('" . $absolute_expected . "')");
+
+      $relative_result = $this->xpath('//*[contains(@class, "field-name-' . drupal_clean_css_identifier($field_name_relative) . '")]/div/div/a/@href');
+      $relative_result = (string) reset($relative_result);
+      $this->assertEqual($relative_result, $relative_expected, "Relative url output ('" . $relative_result . "') looks as expected ('" . $relative_expected . "')");
+    }
+
+    // Check if this works with the alias too.
+    // Add a path alias for node 1.
+    $path = array(
+      'source' => 'node/1',
+      'alias' => $url_tests[1]['label'],
+    );
+    path_save($path);
+    // Another iteration over the same nodes - this time they should use the
+    // path alias.
+    foreach (array_slice($url_tests, 1, NULL, TRUE) as $index => $input2) {
+      $node = node_load($index);
+      $this->assertNotEqual(NULL, $node, "Do we have a node?");
+      $this->assertEqual($node->nid, $index, "Test that we have a node.");
+      $this->drupalGet('node/' . $index);
+
+      $relative_expected = url('node/1', array('absolute' => FALSE) + $input2);
+      $absolute_expected = url('node/1', array('absolute' => TRUE) + $input2);
+
+      $absolute_result = $this->xpath('//*[contains(@class, "field-name-' . drupal_clean_css_identifier($field_name_absolute) . '")]/div/div/a/@href');
+      $absolute_result = (string) reset($absolute_result);
+      $this->assertEqual($absolute_result, $absolute_expected, "Absolute alias-url output ('" . $absolute_result . "') looks as expected ('" . $absolute_expected . "')");
+
+      $relative_result = $this->xpath('//*[contains(@class, "field-name-' . drupal_clean_css_identifier($field_name_relative) . '")]/div/div/a/@href');
+      $relative_result = (string) reset($relative_result);
+      $this->assertEqual($relative_result, $relative_expected, "Relative alias-url output ('" . $relative_result . "') looks as expected ('" . $relative_expected . "')");
+    }
+  }
+}