diff --git a/core/modules/locale/lib/Drupal/locale/ParamConverter/LocaleConfigConverter.php b/core/modules/locale/lib/Drupal/locale/ParamConverter/LocaleConfigConverter.php
new file mode 100644
index 0000000..b53e387
--- /dev/null
+++ b/core/modules/locale/lib/Drupal/locale/ParamConverter/LocaleConfigConverter.php
@@ -0,0 +1,47 @@
+<?php
+
+/**
+ * @file
+ * Contains Drupal\locale\ParamConverter\LocaleConfigConverter.
+ */
+
+namespace Drupal\locale\ParamConverter;
+
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Routing\Route;
+use Drupal\Core\ParamConverter\EntityConverter;
+use Drupal\Core\ParamConverter\ParamConverterInterface;
+
+
+/**
+ * Parameter converter for upcasting entity ids to full objects.
+ */
+class LocaleConfigConverter extends EntityConverter implements ParamConverterInterface {
+
+  /**
+   * Same as EntityConverter::convert just with loading the entity in the
+   * free config context.
+   */
+  public function convert($value, $definition, $name, array $defaults, Request $request) {
+    $entity_type = substr($definition['type'], strlen('entity:'));
+    if ($storage = $this->entityManager->getStorageController($entity_type)) {
+      config_context_enter('config.context.free');
+      $entity = $storage->load($value);
+      config_context_leave();
+      return $entity;
+    }
+  }
+
+  /**
+   * Applies if the Route is an admin path.
+   */
+  public function applies($definition, $name, Route $route) {
+    if (parent::applies($definition, $name, $route)) {
+      // path_is_admin needs the path without leading "/".
+      $path = substr($route->getPath(), 1);
+      return path_is_admin($path);
+    }
+    return FALSE;
+  }
+
+}
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleConfigTranslationTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleConfigTranslationTest.php
index 8fa1ff0..e2ec372 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleConfigTranslationTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleConfigTranslationTest.php
@@ -165,6 +165,10 @@ function testConfigTranslation() {
     // upcasting will already work.
     $this->drupalGet($langcode . '/contact/feedback');
     $this->assertText($category_label);
+
+    // Check if the UI does not show the translated String.
+    $this->drupalGet('admin/structure/contact/manage/feedback');
+    $this->assertFieldById('edit-label', 'Website feedback', 'Translation is not loaded for Edit Form.');
   }
 
 }
diff --git a/core/modules/locale/locale.services.yml b/core/modules/locale/locale.services.yml
index f632704..4d71bf8 100644
--- a/core/modules/locale/locale.services.yml
+++ b/core/modules/locale/locale.services.yml
@@ -16,3 +16,8 @@ services:
     tags:
       - { name: string_translator }
       - { name: needs_destruction }
+  paramconverter.locale:
+    class: Drupal\locale\ParamConverter\LocaleConfigConverter
+    arguments: ['@entity.manager']
+    tags:
+      - { name: paramconverter, priority: 5 }