$ git clone -n https://src.fedoraproject.org/rpms/python-circuitbreaker.git /var/lib/mock/f38-build-side-42-init-devel-1082823-29844/root/chroot_tmpdir/scmroot/python-circuitbreaker
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1082823-29844/root/chroot_tmpdir/scmroot/python-circuitbreaker'...
$ git fetch origin 2503c772a962839cb82b9e2b4e3df884d010955b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-circuitbreaker
 * [new ref]         2503c772a962839cb82b9e2b4e3df884d010955b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2503c77 Add packit config