I18n utils: fix broken case when 'settings' argument is default NULL one.

release/scripts/modules/bl_i18n_utils/settings.py

@@ -601,8 +601,11 @@ class I18nSettings:
         return json.dumps(export_dict)
 
     def load(self, fname, reset=False):
+        reset = reset or fname is None
         if reset:
             self.__dict__ = {uid: data for uid, data in globals().items() if not uid.startswith("_")}
+        if fname is None:
+            return
         if isinstance(fname, str):
             if not os.path.isfile(fname):
                 # Assume it is already real JSon string...