Wallet UI during initial download freezes frequently, block number in progress bar / Debug window doesn't update, UI becomes less responsive. There are also issues with updating UI while catching up missing transactions and rescanning wallet transactions.
PR contains cherry picked Bitcoin changes:
update blocks tip info (in progress bar and Debug window) in asynchronous manner (without cs_main lock): bitcoin/bitcoin#7112
Do not flush the wallet in AddToWalletIfInvolvingMe: bitcoin/bitcoin#4805
Report transactions conflicts in listtransactions RPC: bitcoin/bitcoin#3671
Wallet UI during initial download freezes frequently, block number in progress bar / Debug window doesn't update, UI becomes less responsive. There are also issues with updating UI while catching up missing transactions and rescanning wallet transactions.
PR contains cherry picked Bitcoin changes: