XZise added a comment.
I've provided a patch as it looks wrong to me, but I haven't tested it before or
afterwards so I'm not sure if this does solve it as @Mpaa hasn't had that problem
(although if no gzipped reflink was processed it doesn't happen).
TASK DETAIL
https://phabricator.wikimedia.org/T86462
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To: XZise
Cc: gerritbot, XZise, Mpaa, Aklapper, Rubin16, jayvdb, pywikipedia-bugs