Issue #3011228: Missing `data-quickedit-entity-id` attribute prevents in-place editing of embedded entities

entity_embed.module

@@ -64,6 +64,13 @@ function template_preprocess_entity_embed_container(array &$variables) {
   if (isset($variables['attributes']['data-entity-embed-display-settings']) && is_array($variables['attributes']['data-entity-embed-display-settings'])) {
     $variables['attributes']['data-entity-embed-display-settings'] = Json::encode($variables['attributes']['data-entity-embed-display-settings']);
   }
+
+  // Add QuickEdit attributes.
+  if (!empty($variables['element']['#entity'])) {
+    $type = $variables['element']['#entity']->getEntityType()->id();
+    $id = $variables['element']['#entity']->id();
+    $variables['attributes']['data-quickedit-entity-id'] = "$type/$id";
+  }
 }
 
 /**