A globally observed second cluster can leave a PBS source apparently mapped to the first while both clusters match a shared-node snapshot. Do not promote a positive but tied guest match into the VMID-only inference path. Regression covers both VM and CT completed and in-flight snapshots with the second cluster visible on another PBS instance.
Contract-Neutral: Preserve existing PBS backup attribution safety without changing API fields, persisted shapes, or source contracts.
Change-source: pulse-maintainer
pulse-triage[bot]
d704afa68a