Martin von Zweigbergk <martinvonz@google.com> [Fri, 18 Mar 2022 21:37:22 -0700] rev 48814
tests: demonstrate that copy info in changeset gets lost on amend
When copy information is stored in changesets, it gets lost on
amend. We didn't notice that until now because our users at Google
have the config set to `compatibility`, which means copy information
is stored in both changeset and filelogs.
Differential Revision: https://phab.mercurial-scm.org/D12386