Duplicate assistant reply during mid-stream session switch
Cluster 121122. Data as of
Nothing open on GitHub. Fix merged in #121602 on 24 Sep 2026. Check it covers your case.
The short answer
- Known?
- Yes. 4 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #121602. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #121602. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These items address a desktop bug where switching sessions while a response is still streaming causes the assistant's reply to appear twice — as both a frozen copy and a live copy. The work involves deduplication logic, transcript pinning, and partial-turn handling during session transitions.
Open issues0
Open PRs0
Fixes on record
-
#121602 fix(desktop): pin transcript during streamed growth; no duplicate reply after mid-stream session switch
files:
apps/desktop/src/app/session/hooks/use-session-actions/utils.test.ts,apps/desktop/src/app/session/hooks/use-session-actions/utils.ts,apps/desktop/src/components/assistant-ui/thread/list-session-scroll.test.tsx,apps/desktop/src/components/assistant-ui/thread/list.tsx,apps/desktop/src/store/thread-scroll.ts
2 PRs closed without merging
From the close comments: merged via another change 1 · other 1
Closed issues · 1
- Closed#121122[Bug]: Desktop — assistant reply rendered twice (frozen copy + live copy) after switching sessions while a turn is streaming
How this cluster was grouped
-
Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.50: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Merged PRs
- #121602
- Closed issues
- 1
- Attempts
- 2 PRs closed without merging
- Fix link checked
- 24 Sep 2026