werkator/docs/prs/2026-10-11-PR#151-restart-split.md

WARNING: This document describes only the change applied in this PR. It may already be outdated once the next PR is merged. Historic PR-documentation is not maintained along with new PRs — treat it as a snapshot, not as current documentation.

Problem

The nightly mutation build of 2026-10-11 failed its Mutation-CRAP gate on main (d95b7e6, the merge of PR#150). BuildsApiController.restart scores 15.64; the limit is 15. It stood at 14.07 before; PR#150 added the refusal of the newest commit to it.

Non-Goals

• No change of behaviour; the existing scenarios of PR#150 stay.

Solution

• restartAtNewestCommit takes the newest-commit branch of restart: the refusal and the origin head. restart keeps the token check and the repetition of the latest recorded commit.

• Measured locally with PIT on BuildsApiController, BuildRestarts and RestartPolicy:

  Method	Mutation-CRAP
  BuildsApiController.restart	8 (was 15.64)
  BuildsApiController.restartAtNewestCommit	3
  BuildRestarts.newestCommitRefusal	5

  The highest score of the three classes is the unchanged BuildsApiController.current, 13.70.

Additional Changes

• The plan notes the split under #restart2.
• Version 1.41.2 with its release note.