PR metadata edits can cancel same-commit CI runs

In GitHub Actions, a workflow that subscribes to pull_request edited events and uses a per-PR concurrency group with cancel-in-progress can cancel an active validation run when only the PR description changes. The replacement run may validate exactly the same commit, so an unchanged head SHA does not identify which run remains authoritative. Finish metadata edits before monitoring expensive checks, or put interim evidence in a comment when that repository's triggers permit it. Follow the replacement run without resetting the monitoring deadline. This applies only when the event subscription and concurrency configuration establish that behavior; cancellation alone does not prove its cause.

Applies when: reporting progress on a PR whose metadata events trigger cancellable CI. Keywords: GitHub Actions pull request edited concurrency cancellation description checks