End chat lifecycle is called twice

[kevinwmerritt]

Describe the bug
The on_chat_end hook is called twice.

To Reproduce
Steps to reproduce the behavior:

@cl.on_chat_start
async def on_chat_start():
    print("on_chat_start")

@cl.on_chat_end
async def end_chat():
    print("on_chat_end")

1. Navigate to /
2. Click on New Chat
3. Submit at least one message.
4. Observe in logs that on_chat_end is called twice.

Expected behavior
The on_chat_end hook is called once.

Screenshots

Screen.Recording.2024-05-07.at.9.45.04.AM.mov

Additional context
Chainlit 1.0.506