$ git clone -n https://src.fedoraproject.org/rpms/hwk.git /var/lib/mock/f41-build-2442905-25478/root/chroot_tmpdir/scmroot/hwk
Cloning into '/var/lib/mock/f41-build-2442905-25478/root/chroot_tmpdir/scmroot/hwk'...
$ git fetch origin cc5b725ed0c3eda3897b35b38d93ea6a0c7f1153:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hwk
 * [new ref]         cc5b725ed0c3eda3897b35b38d93ea6a0c7f1153 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc5b725 bump release