[Fixes #12883] Error in passing params from metadata parsers to storers

geonode/resource/manager.py

@@ -423,7 +423,7 @@ def update(
             finally:
                 try:
                     _resource.save(notify=notify)
-                    kwargs = {**kwargs, **{"custom": custom}}
+                    kwargs['custom'] = custom
                     resourcebase_post_save(_resource.get_real_instance(), **kwargs)
                     _resource.set_permissions(
                         created=False,