bisect: --command without --noupdate should flag the parent rev it tested 14913fcb30c6 not only introduced the 'bisect(current)' revset predicate, it also changed how the 'current' revision is used in combination with --command. The new behaviour might be ok for --noupdate where the working directory and its revision shouldn't be used, but it also did that when --command is used to run a command on the currently checked out revision then it could register the test result on the wrong revision. An example: Before, bisect with --command could use the wrong revision when recording the test result: $ hg up -qr 0 $ hg bisect --command "python \"$TESTTMP/script.py\" and some parameters" changeset 31:58c80a7c8a40: bad abort: inconsistent state, 31:58c80a7c8a40 is good and bad Now it works as before and as expected and uses the working directory revision for the --command result: $ hg up -qr 0 $ hg bisect --command "python \"$TESTTMP/script.py\" and some parameters" changeset 0:b99c7b9c8e11: bad ...