The publication scrub gate rejects internal references, and a real site
hostname in a test is still one in the published repo. The rewrite does not
care which server it is.
Snapshots written before the client was fixed stored "W:\backup\partmarker\..."
as their location. That mapping exists only inside the SYSTEM logon session,
only during an enforcement cycle, and only on the bay that wrote it, so the path
recorded against a marker resolved to nothing for the person most likely to open
it.
The script rewrites backuprevisions.sharepath and nothing else - no revision is
created, deleted, re-filed or re-hashed, and no file on the share moves, since
the bytes are already where the UNC will point. Dry run by default.
It matches on the drive letter alone and leaves everything else untouched,
including paths that are already UNC and paths on another drive. This repairs a
specific known mistake rather than normalising whatever it can reach, which is
the version of this script that would eventually rewrite something it should
not have.
rewrite() is kept pure so the decision of WHICH paths to touch is testable
without an app context; the tests cover the already-UNC, other-drive, empty,
case-difference and trailing-separator cases.
