DepotDowloader fails to delete files not found in newer manifest

[ryantheleach]

DepotDownloader appears to not be deleting old files that are not found in the upgraded manifest, that were originally in the 'current manifest'

screenshot is of a git commit/diff of a game which has no files removed.

1. Note that the human readable manifest, is showing that Core_UUID-WindowsClientP11.pak has been removed.
2. Note that in the git commit, only files were modified (yellow) and added (green) and not removed (red)

Reproduction steps:

Download an older manifest then current, then upgrade to a later release (which is also not current)

[azuisleet]

Without seeing the actual commands you ran, it is difficult to diagnose.

If you are changing the working directory, then there won't be an existing installed manifest to compare against.

[ryantheleach]

It didn't change the working directory, I think I may have a clue though, as I'm running -manifest-only directly before it, in order to get a copy of the manifest to compare to.

I believe that running it with manifest-only is causing the current manifest to update, when all I wanted was the human readable version.

I think if I did it in reverse order it would have been fine.

[nutterthanos]

it seems to be happening with steamctl too