1. Customer has one user collection that they migrate and cancel halfway through.
2. Customer changes TSV just on 50% of the users to set the ArchivePaths to a different source server (Arch02).
3. They migrated again the same collection. All users that point to Arch02 (50%) have duplications.
They migrated users once from one source server, then second time 50% from same server (Arch01) and the other 50% (Arch02).