Bug Description

The typing indicator keepalive feature introduced in PR #25886 (version 2026.2.24) has a regression where the typing indicator is not properly cleared after the response completes.

Version

2026.2.24

Expected Behavior

1. Typing indicator starts when response begins
2. Keepalive refreshes it during long operations
3. Typing indicator clears when response finishes or on idle/cleanup

Actual Behavior

The keepalive timer isn't getting cleared properly, causing the typing indicator to persist indefinitely after the response has been sent.

Related

• PR fix: keep typing indicator alive during long inference #25886 — introduced the keepalive feature
• Issue [Bug]: Typing indicator expires during long LLM inference – no keepalive in createTypingCallbacks #25882 — original issue that keepalive was meant to fix
• Issue Send stop-typing signal when run ends with NO_REPLY #8785 — similar symptom (lingering after NO_REPLY) but different trigger

Discord Report

Multiple users have reported this on Discord: "Telegram shows typing... all the time after upgrade" — matching this behavior exactly.

Workaround

Set in Telegram channel config to disable the typing indicator entirely.