--- a/mercurial/copies.py Sun Dec 12 22:09:13 2021 -0500 +++ b/mercurial/copies.py Sun Dec 12 22:24:16 2021 -0500 @@ -246,7 +246,6 @@ return {} repo = a.repo().unfiltered() - children = {} cl = repo.changelog isancestor = cl.isancestorrev