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correct 'backend' (bbolt) context in aspect of membership. Prior to this change the 'restored' backend used to still contain: - old memberid (mvcc deletion used, why the membership is in bolt bucket, but not mvcc part): ``` mvs := mvcc.NewStore(s.lg, be, lessor, ci, mvcc.StoreConfig{CompactionBatchLimit: math.MaxInt32}) defer mvs.Close() txn := mvs.Write(traceutil.TODO()) btx := be.BatchTx() del := func(k, v []byte) error { txn.DeleteRange(k, nil) return nil } // delete stored members from old cluster since using new members btx.UnsafeForEach([]byte("members"), del) ``` - didn't get new members added.