Owen Lin 40db507eec Avoid redundant settings checkpoints when resuming threads (#56250) ...

## Why

Resuming a thread with unchanged settings appended another `ThreadSettingsApplied` event to its rollout.

## What changed

Compare the effective settings with the latest persisted settings for the same thread before writing a checkpoint. Persist settings when they differ or no matching checkpoint exists, even if no turn follows the resume.

## Testing

Add a regression test that restarts the app server, resumes a materialized thread without overrides, and verifies that its persisted settings events remain unchanged.

GitOrigin-RevId: c545791ed3bb4020fa3da6d233607a9ba73e5c8d

2026-10-22 20:06:07 +00:00

..

common

Recheck account login ownership for enterprise MCP (#55680)

2026-10-20 21:34:24 +00:00

suite

Avoid redundant settings checkpoints when resuming threads (#56250)

2026-10-22 20:06:07 +00:00

all.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00

prompt_prefix.rs

Add an app-server prompt prefix compatibility test (#51857)

2026-10-07 22:21:33 +00:00