Change Details

There should be a lock on cs_main here because the test is editing the actual chaintip.

We could take a lock on cs_main to do the modification here, but it's better to just set the mock time prior to mining the block in the first place.

There shWe could betake a lock on cs_main to do the modification here because, but it's better to just set the test is editmock time prior to mining the actual chaintipblock in the first place.