largefile: synchronise the dirstate within a `parentchange` context
Semantically these changes are made to adjust the dirstate after a commit, so it
should be in a parentchange
context.
All legacy (hg-git based) Projects have been automatically migrated to native with the upgrade of 2025-01-23
Semantically these changes are made to adjust the dirstate after a commit, so it
should be in a parentchange
context.