Wallet/chain height mismatch

[mackuba]

From Wei's crash logs:

• Hive starts with "chain head is at height 168587”
• two pending incoming transactions are being tracked
• confirmations of these pending transactions are received, they get saved into the wallet
• many hours later Hive is restarted, and then:

"chain head is at height 168587”
"Wallet/chain height mismatch: 168682 vs 168587”

It starts importing last ~100 blocks again, gets the two transactions in those blocks, and since they’re already in the wallet, it throws a “java.lang.IllegalStateException”.