Bugfix and robustness in branch closing
This brings in a fix for one of the case of heptapod#452 (closed) and hopefully unblocks the other ones while providing useful tracebacks.
All legacy (hg-git based) Projects have been automatically migrated to native with the upgrade of 2025-01-23
This brings in a fix for one of the case of heptapod#452 (closed) and hopefully unblocks the other ones while providing useful tracebacks.