diff --git a/core/lib/Drupal/Core/ParamConverter/EntityConverter.php b/core/lib/Drupal/Core/ParamConverter/EntityConverter.php
index 683fdff..d64ff19 100644
--- a/core/lib/Drupal/Core/ParamConverter/EntityConverter.php
+++ b/core/lib/Drupal/Core/ParamConverter/EntityConverter.php
@@ -7,7 +7,9 @@
 
 namespace Drupal\Core\ParamConverter;
 
+use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\TypedData\TranslatableInterface;
 use Symfony\Component\Routing\Route;
 
 /**
@@ -64,7 +66,13 @@ public function __construct(EntityManagerInterface $entity_manager) {
   public function convert($value, $definition, $name, array $defaults) {
     $entity_type_id = $this->getEntityTypeFromDefaults($definition, $name, $defaults);
     if ($storage = $this->entityManager->getStorage($entity_type_id)) {
-      return $storage->load($value);
+      $entity = $storage->load($value);
+      // If the entity type is translatable, ensure we return the proper
+      // translation object for the current context.
+      if ($entity instanceof EntityInterface && $entity instanceof TranslatableInterface) {
+        $entity = $this->entityManager->getTranslationFromContext($entity, NULL, array('operation' => 'entity_upcast'));
+      }
+      return $entity;
     }
   }
 
diff --git a/core/modules/content_translation/src/Form/ContentTranslationDeleteForm.php b/core/modules/content_translation/src/Form/ContentTranslationDeleteForm.php
index 1b723ce..b1a4580 100644
--- a/core/modules/content_translation/src/Form/ContentTranslationDeleteForm.php
+++ b/core/modules/content_translation/src/Form/ContentTranslationDeleteForm.php
@@ -72,6 +72,7 @@ public function getCancelUrl() {
    */
   public function submitForm(array &$form, FormStateInterface $form_state) {
     // Remove the translated values.
+    $this->entity = $this->entity->getUntranslated();
     $this->entity->removeTranslation($this->language->id);
     $this->entity->save();
 
diff --git a/core/modules/system/src/Tests/Entity/EntityTranslationFormTest.php b/core/modules/system/src/Tests/Entity/EntityTranslationFormTest.php
index cc42f0e..53ad96b 100644
--- a/core/modules/system/src/Tests/Entity/EntityTranslationFormTest.php
+++ b/core/modules/system/src/Tests/Entity/EntityTranslationFormTest.php
@@ -107,6 +107,7 @@ function testEntityFormLanguage() {
     // Create a body translation and check the form language.
     $langcode2 = $this->langcodes[1];
     $node->getTranslation($langcode2)->body->value = $this->randomMachineName(16);
+    $node->getTranslation($langcode2)->setOwnerId($web_user->id());
     $node->save();
     $this->drupalGet($langcode2 . '/node/' . $node->id() . '/edit');
     $form_langcode = \Drupal::state()->get('entity_test.form_langcode');
diff --git a/core/modules/system/src/Tests/ParamConverter/UpcastingTest.php b/core/modules/system/src/Tests/ParamConverter/UpcastingTest.php
index 0809777..95a7eab 100644
--- a/core/modules/system/src/Tests/ParamConverter/UpcastingTest.php
+++ b/core/modules/system/src/Tests/ParamConverter/UpcastingTest.php
@@ -8,6 +8,7 @@
 namespace Drupal\system\Tests\ParamConverter;
 
 use Drupal\simpletest\WebTestBase;
+use Drupal\language\Entity\ConfigurableLanguage;
 
 /**
  * Tests upcasting of url arguments to entities.
@@ -16,7 +17,7 @@
  */
 class UpcastingTest extends WebTestBase {
 
-  public static $modules = array('paramconverter_test', 'node');
+  public static $modules = array('paramconverter_test', 'node', 'language');
 
   /**
    * Confirms that all parameters are converted as expected.
@@ -59,4 +60,26 @@ public function testSameTypes() {
     $this->drupalGet("paramconverter_test/node/" . $node->id() . "/set/parent/" . $parent->id());
     $this->assertRaw("Setting '" . $parent->getTitle() . "' as parent of '" . $node->getTitle() . "'.");
   }
+
+  /**
+   * Confirms entity is shown in user's language by default.
+   */
+  public function testEntityLanguage() {
+    $language = ConfigurableLanguage::createFromLangcode('de');
+    $language->save();
+    language_negotiation_url_prefixes_save(array('de' => 'de'));
+
+    // The container must be recreated after adding a new language.
+    $this->rebuildContainer();
+
+    $node = $this->drupalCreateNode(array('title' => 'English label'));
+    $translation = $node->addTranslation('de');
+    $translation->setTitle('Deutscher Titel')->save();
+
+    $this->drupalGet("/paramconverter_test/node/" . $node->id() . "/test_language");
+    $this->assertRaw("English label");
+    $this->drupalGet("paramconverter_test/node/" . $node->id() . "/test_language", array('language' => $language));
+    $this->assertRaw("Deutscher Titel");
+  }
+
 }
diff --git a/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.routing.yml b/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.routing.yml
index 9dd3ed3..b811f17 100644
--- a/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.routing.yml
+++ b/core/modules/system/tests/modules/paramconverter_test/paramconverter_test.routing.yml
@@ -37,3 +37,10 @@ paramconverter_test.node_set_parent:
     parameters:
       parent:
         type: 'entity:node'
+
+paramconverter_test.node_check_language:
+  path: '/paramconverter_test/node/{node}/test_language'
+  requirements:
+    _access: 'TRUE'
+  defaults:
+    _content: '\Drupal\paramconverter_test\TestControllers::testEntityLanguage'
diff --git a/core/modules/system/tests/modules/paramconverter_test/src/TestControllers.php b/core/modules/system/tests/modules/paramconverter_test/src/TestControllers.php
index cd9b578..8b48b45 100644
--- a/core/modules/system/tests/modules/paramconverter_test/src/TestControllers.php
+++ b/core/modules/system/tests/modules/paramconverter_test/src/TestControllers.php
@@ -25,4 +25,8 @@ public function testUserNodeFoo(EntityInterface $user, NodeInterface $node, Requ
   public function testNodeSetParent(NodeInterface $node, NodeInterface $parent) {
     return "Setting '{$parent->label()}' as parent of '{$node->label()}'.";
   }
+
+  public function testEntityLanguage(NodeInterface $node) {
+    return $node->label();
+  }
 }