MDB2 diff rarely doesn't represent the present changes

[Zonespace27]

https://github.com/cmss13-devs/cmss13/pull/6233/checks?check_run_id=24534214701

Above PR is a fairly simple one to repath a few item types. However, the diff for BigRed.dmm seems to imply a lot was changed, despite nothing being different between the new/old images (aside from what was actually changed)

https://affectedarc07.blob.core.windows.net/mdb2/images/366979357/24534214701/m/maps_map_files_BigRed_BigRed/0-diff.png

This only seems to have happened with the one .dmm diff, the rest of the maps seem unaffected by any kind of bug.