Re-activated all 10 twins so every Square location is shared again, then
re-imported. Three consecutive refund imports for both halves of the Concord
pair leave counts unchanged: NGCC 127/127/127/127, NGCD 1419/1419/1419/1419.
That is the configuration that previously made a refund's owner flip every ~20
minutes. With client-scoped keys each client resolves its own entity and updates
it in place, so repeated imports are idempotent and the two copies are stable.
Only the first import after migration grows anything, once: NGCD materialised
100 of its own copies while NGCC, already carrying its scoped key, gained only
the 2 refunds that were genuinely new.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Bryce
c5a6e8ab87