{"id":"multi-leader-custom-merge-idempotent-across-syncs","text":"Custom merge functions are applied once per conflict; repeated sync rounds on already-converged values must not re-trigger the merge, preventing bugs like counters doubling on every sync cycle.","truth_value":"IN","source":"entries/2026/05/29/multi-leader-replication-tester_test_multi_leader.md","source_url":"","source_hash":"","justifications":[],"dependents":["multi-leader-sync-designed-for-safe-convergence"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"multi-leader-custom-merge-idempotent-across-syncs","truth_value":"IN","reason":"premise"}]}}