…y-pick

Normally we would only blacklist the upstream branch we're working on if
patch-id changed after a successful cherry-pick. Thus we can still port
the patch to other branch in the future.

"git show --notes" will return 141 when file contents are very long
and you enter 'q' command.

safe_run will fail because of it and will give the following error:
git show --notes $sha1 failed! Aborting.

Hence we couldn't use safe_run for this command.