Data loss during rebalance after service restart

• start development cluster of two nodes
• set up first node with default bucket
• join second node but don't rebalance yet
• load some data
• wait till it hits disk
• Ctrl-C and start this cluster back
• wait till warmup is done and observe that data is there
• run rebalance
• observe that after rebalance new node has zero items. Those are lost.

It's not happening if we don't restart. And same happens if I just kill -9 memcached instead of restarting everything.