fix(mattermost): record fail-closed changelog

eleqtrizit · eleqtrizit · commit 420471125332 · 2026-05-18T19:10:43.000Z
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -47,6 +47,7 @@ Docs: https://docs.openclaw.ai
 ### Fixes
 
 - CI: require real-behavior-proof verdict markers to come from the ClawSweeper GitHub App before accepting exact-head proof. (#83692)
+- Mattermost: fail closed when channel type metadata is missing or blank, preventing unknown Mattermost channel kinds from being treated as public channels. (#78530)
 - Agents/image generation: allow distinct `image_generate` prompts to start separate session-backed background tasks while same-prompt retries still return the active task status. (#83614) Thanks @Elarwei001.
 - Control UI: stop the chat reading indicator from sticking after an assistant response finishes. (#83515) Thanks @njuboy11.
 - Skills: reject empty or whitespace-only skill names and descriptions during quick validation. (#27061)
