etcdserver/api/v2store: fix race in TestIssue2746WithThree (#11982)
etcdserver/api/v2store: fix race in TestIssue2746WithThree (#11982)


ajityagaty/etcd,rnaveiras/etcd,etcd-io/etcd,ajityagaty/etcd,mqliang/etcd,mqliang/etcd,gyuho/etcd,mkumatag/etcd,dannysauer/etcd,mkumatag/etcd,coreos/etcd,etcd-io/etcd,cockroachdb/etcd,rnaveiras/etcd,ajityagaty/etcd,rnaveiras/etcd,etcd-io/etcd,mkumatag/etcd,gyuho/etcd,cockroachdb/etcd,li-ang/etcd,dannysauer/etcd,mqliang/etcd,li-ang/etcd,coreos/etcd