https://bz.mercurial-scm.org/show_bug.cgi?id=6538
Bug ID: 6538
Summary: Follow up to issue 6528, parent ordering
Product: Mercurial
Version: default branch
Hardware: PC
OS: Linux
Status: UNCONFIRMED
Severity: bug
Priority: wish
Component: Mercurial
Assignee: bugzi...@mercurial-scm.org
Reporter: pierre-yves.da...@ens-lyon.org
CC: mercurial-devel@mercurial-scm.org
Python Version: ---
issue6528 was introduced by 49fd21f32695 :
changeset: 49092:49fd21f32695
user: Joerg Sonnenberger <jo...@bec.de>
date: Wed Mar 10 18:09:21 2021 +0100
summary: revlog: guarantee that p1 != null if a non-null parent exists
A changeset that was eventually backed out last week as 411dc27fd9fd
To sumup 49fd21f32695, swapping p1 and p2 is p1 is nullid destroy the implicit
"this file-revision has copy information" marker and corrupt repository.
However Joerg Sonnenberger have been warning use about other potential bug that
backing out this changeset introduce.
such bug would be related to bad order of changelog-revision, however I don't
have more details about them.
I think we needs:
- clearer information from Joerg about these changelog related bug (or someone
else to dig them out),
- a new changeset to prevent parent swapping on filelog, but allowing it on
changelog.
- a script to fully scrub a repository to detect and swapped filelog
information.
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