$ git clone -n https://src.fedoraproject.org/rpms/ghc-maccatcher.git /var/lib/mock/f38-build-side-42-init-devel-967498-28808/root/chroot_tmpdir/scmroot/ghc-maccatcher
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-967498-28808/root/chroot_tmpdir/scmroot/ghc-maccatcher'...
$ git fetch origin 6f58362d22c2de929b71be42fbae6f02fc67f540:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-maccatcher
 * [new ref]         6f58362d22c2de929b71be42fbae6f02fc67f540 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f58362 Convert to %autorelease and %autochangelog