Ever since updating to macOS 10.15.4 I've been having problems with SourceTree indirectly causing very high CPU utilization. This appears to be due to it spamming securityd with tasks, possibly some infinite loop due to the code signature verification failure, as seen this snapshot of less that 1 minute of logs: http://it.ishe.re/6fbc8ffc8eb6

Initially it was keeping one core at 100%. Updating to the latest version of SourceTree didn't fix the issue, so I reinstalled and that did fix the issue. However, it came back today for some reason. I've just updated to version 4.0.1 (234) and restarted SourceTree and the issue persists, although it's unclear whether it's truly persisting or if there's just an enormous queue of securityd tasks remaining to be cleared. In any case, it'd be good to not have to entirely reinstall SourceTree if whatever triggered the recurrence of this issue again recurs.