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Kristoffer Dalby
de6be71a86
requirePrimaryStable in TestHASubnetRouterFailoverDockerDisconnect Phase 5a (simultaneous cable-pull of both routers) intermittently caught the primary flipping to the offline r1. Both probe goroutines mark their target unhealthy back-to-back; SetNodeUnhealthy publishes a fresh NodeStore snapshot each call, so the intermediate snapshot — r1 unhealthy, r2 still healthy — runs the election with one healthy candidate left and picks it. The next snapshot then enters the all-unhealthy preserve-prev path, which preserves the wrong choice. Collect probe results from the cycle and apply them through a new NodeStore.UpdateNodes batched op so the election only runs once, with the cycle's final health state. PolicyChange dispatch moves outside the wg.Go goroutines and fires once if the primary assignment actually changed.