Fix API Media model::save(): Return resulting path with the requested…

… adapter

api/components/com_media/src/Model/MediumModel.php

@@ -232,7 +232,8 @@ public function save($path = null): string
             );
         }
 
-        return $resultPath;
+        // Return resulting path with the requested adapter in it
+        return $adapterName . ':/' . $resultPath;
     }
 
     /**