dachcom-digital#81 fix for compatibility with pimcore 5.6.0

Author: lorextera

src/MembersBundle/CoreExtension/GroupMultiselect.php

@@ -178,4 +178,26 @@ public function getDataFromResource($data = [], $object = null, $params = [])
         return $elements;
     }
 
-}
+    /**
+     * @param array $data
+     * @param null  $object
+     * @param array $params
+     * @return array
+     */
+    public function loadData($data, $object = null, $params = [])
+    {
+        return $this->getDataFromResource($data, $object, $params);
+    }
+
+    /**
+     * @param array $data
+     * @param null  $object
+     * @param array $params
+     * @return array
+     */
+    public function prepareDataForPersistence($data, $object = null, $params = [])
+    {
+        return $this->getDataFromResource($data, $object, $params);
+    }
+
+}