epriestley 4dc857e36d Fix an issue with incorrect split head detection in Mercurial after pushing a medley of varied changes ... Summary: Fixes T10665. See that task for discussion. Because `$head_map` is not properly re-initialized for each ref we check, pushes which affect multiple branches (say, "A" and "B") can have information bleed from the first branch check to the second branch. To trigger a problem behavior, you can push one commit which updates an existing branch, plus one commit which creates a new branch. If they process in the right order, the `$head_map` from the updated branch will bleed into the `$head_map` for the new branch and trigger an incorrect head split detection. Test Plan: - Pushed a set of changes which updated `branch-a` and created `branch-b`. - Before change: improper detection of split heads. - After change: clean push. - Pushed a set of changes which split the head of `branch-d`. - Correct detection of split heads. Reviewers: chad Reviewed By: chad Maniphest Tasks: T10665 Differential Revision: https://secure.phabricator.com/D15522		2016-03-25 07:33:55 -07:00
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DiffusionCommitHookEngine.php	Fix an issue with incorrect split head detection in Mercurial after pushing a medley of varied changes	2016-03-25 07:33:55 -07:00