diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleTranslationTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleTranslationTest.php
index fd0b6cf..e3b6777 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleTranslationTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleTranslationTest.php
@@ -474,8 +474,7 @@ function testStringSearch() {
   }
 
   /**
-   * Test that strings are only saved and marked as customized when they are
-   * actually changed.
+   * Tests that only changed strings are saved customized when edited.
    */
   function testUICustomizedStrings(){
     $user = $this->drupalCreateUser(array('translate interface', 'administer languages', 'access administration pages'));
@@ -500,7 +499,7 @@ function testUICustomizedStrings(){
     // Reset locale cache.
     locale_reset();
 
-    // Queries strings with showing only non-customized strings.
+    // Ensure non-customized translation string does appear if searching Non-customized translation.
     $search = array(
       'string' => $string->getString(),
       'langcode' => 'de',
@@ -511,8 +510,7 @@ function testUICustomizedStrings(){
 
     $source = $this->assertText($translation->getString(), 'Translation is found in search result.');
 
-    // Submitting the translations withouth changing the translation, so the
-    // translation should not be saved and still be returned as non-customized.
+    // Submit the translations without changing the translation.
     $textarea = current($this->xpath('//textarea'));
     $lid = (string) $textarea[0]['name'];
     $edit = array(
@@ -520,10 +518,17 @@ function testUICustomizedStrings(){
     );
     $this->drupalPost('admin/config/regional/translate/translate', $edit, t('Save translations'));
 
-    $source = $this->assertText($translation->getString(), 'Translation still marked as non-customized.');
+    // Ensure unchanged translation string does appear if searching non-customized translation.
+    $search = array(
+      'string' => $string->getString(),
+      'langcode' => 'de',
+      'translation' => 'translated',
+      'customized' => '0',
+    );
+    $this->drupalPost('admin/config/regional/translate/translate', $search, t('Filter'));
+    $source = $this->assertText($string->getString(), 'Translation is not marked as customized.');
 
-    // Submitting the translations with a new the translation, so the
-    // translation will be saved as customized and no result will be returned.
+    // Submit the translations with a new translation.
     $textarea = current($this->xpath('//textarea'));
     $lid = (string) $textarea[0]['name'];
     $edit = array(
@@ -531,6 +536,14 @@ function testUICustomizedStrings(){
     );
     $this->drupalPost('admin/config/regional/translate/translate', $edit, t('Save translations'));
 
-    $this->assertText(t('No strings available.'), "No result anymore, so the string has been saved as customized.");
+    // Ensure changed translation string does appear if searching customized translation.
+    $search = array(
+      'string' => $string->getString(),
+      'langcode' => 'de',
+      'translation' => 'translated',
+      'customized' => '1',
+    );
+    $this->drupalPost('admin/config/regional/translate/translate', $search, t('Filter'));
+    $this->assertText($string->getString(), "Translation is marked as customized.");
   }
 }