some-more-fixes

resolvers/chats.py

@@ -44,7 +44,9 @@ async def update_chat(_, info, chat_new):
 
 @mutation.field("createChat")
 @login_required
-async def create_chat(_, info, title="", members=[]):
+async def create_chat(_, info, title="", members=None):
+    if members is None:
+        members = []
     chat = None
     author_id = info.context["author_id"]
     print("create_chat members: %r" % members)