Nathan Sobo 7c603e991f Fix race condition in update_last_checkpoint (#44801)
Release Notes:

- Fixed spurious "no checkpoint" error in agent panel

---

## Summary

`update_last_checkpoint` would call `last_user_message()` twice - once
at the start to capture the checkpoint, and again in an async closure
after the checkpoint comparison completed. If a new user message without
a checkpoint was added between these two calls, the second call would
find the new message and fail with "no checkpoint".

## Fix

Capture the user message ID at the start and use `user_message_mut(&id)`
in the async closure to find the specific message.

cc @mikayla-maki
2025-12-20 10:42:58 -07:00
2025-10-21 09:58:26 +02:00
2025-10-17 18:49:11 +02:00
2025-09-23 16:49:45 +00:00
2025-12-17 16:14:57 +00:00
2025-10-27 13:27:59 -04:00
WIP
2023-12-14 09:25:14 -07:00
2025-03-10 01:06:11 -07:00
2024-09-30 17:46:21 -04:00
2025-12-17 01:42:04 +01:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00
2025-03-10 01:06:11 -07:00

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