compat: Handle case where opts are None for <= 6.5
fix for https://bz.mercurial-scm.org/show_bug.cgi?id=6865
encountered when doing a backout on a changeset in a topic mercurial version 6.5.1
All legacy (hg-git based) Projects have been automatically migrated to native with the upgrade of 2025-01-23
fix for https://bz.mercurial-scm.org/show_bug.cgi?id=6865
encountered when doing a backout on a changeset in a topic mercurial version 6.5.1