NPE encountered when rolling update from master with an async peer to branch HBASE-19064

2018-06-25 16:25:04,261 ERROR [Thread-14] master.HMaster: Failed to become active master
java.lang.NullPointerException
        at org.apache.hadoop.hbase.replication.SyncReplicationState.parseFrom(SyncReplicationState.java:72)
        at org.apache.hadoop.hbase.replication.ZKReplicationPeerStorage.getSyncReplicationState(ZKReplicationPeerStorage.java:224)
        at org.apache.hadoop.hbase.replication.ZKReplicationPeerStorage.getPeerSyncReplicationState(ZKReplicationPeerStorage.java:240)
        at org.apache.hadoop.hbase.master.replication.ReplicationPeerManager.create(ReplicationPeerManager.java:479)
        at org.apache.hadoop.hbase.master.HMaster.initializeZKBasedSystemTrackers(HMaster.java:755)
        at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:895)
        at org.apache.hadoop.hbase.master.HMaster.startActiveMasterManager(HMaster.java:2126)
        at org.apache.hadoop.hbase.master.HMaster.lambda$run$0(HMaster.java:571)
        at java.lang.Thread.run(Thread.java:748)