title: rabbitmq cluster all down ,when first slave node,queue is state down
body: <p>I have 3 nodes this disc mode and "ha-mode is all". rabbitmq version 3.6.4 </p>
  
  <p>when I try to stop all nodes, first I stop two slave nodes,end stop master nodes. Assume that master node is broken and can't be started. I use <code>rabbitmqctl force_boot</code> setup one slave node, I found queue state is down.</p>
  
  <p>I don't think this is right. I think the slave node setup become master, and queue is available. Do not consider whether the message is lost.</p>
  
  <p>But, first stop master node,  then stop new master node, end last node. I can
  <code>rabbitmqctl force_boot</code> setup any node. any node is available.</p>