wallet.get_history: take locks.
wallet.get_history: take locks.

Re the check at the end: "history not synchronized" - it's not that it's not synchronized,
rather that the history is changing while being computed.

pooler/electrum-ltc,spesmilo/electrum,pooler/electrum-ltc,wakiyamap/electrum-mona,wakiyamap/electrum-mona,pooler/electrum-ltc,wakiyamap/electrum-mona,spesmilo/electrum,pooler/electrum-ltc,spesmilo/electrum,spesmilo/electrum,wakiyamap/electrum-mona