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MHSanaei
5a7b3b7370
Adding a user to multi-node inbounds could leave 3-6 identical entries in one inbound's settings.clients array: addInboundClient appended incoming clients unconditionally, and the duplicate-email precheck exempts a matching subId (so one identity can span several inbounds), so a retried or raced add of the same client re-appended it to an inbound that already carried it - on the master and, since nodes run the same code, on every node, whose snapshot adoption then copied the duplicates back verbatim. The normalized clients/client_inbounds tables stayed clean (unique constraints), which is why the phantom rows only showed in settings-driven views like the Detach clients modal, where duplicate React keys also broke the selection counter. Three layers: addInboundClient now skips incoming clients whose email is already on the target inbound (idempotent re-adds instead of duplication), node snapshot adoption collapses duplicate emails before writing the central row, and an idempotent startup repair rewrites any inbound whose settings still carry duplicates from older builds. Closes #5770