Wallet crash & zapwallet bug

[uy5cu71]

1. When you click on mined orphaned transaction - blocknet-qt crashes
   Reproduce: (wait for orphaned block) -> Transaction history -> click on mined orphaned transaction -> crash
2. After select zapwallet and restart - Error blocknet qt already running
   Reprotuce: Tools -> Wallet repair -> Recover transactions (drop metadata) -> Restart bug