$ git clone -n https://src.fedoraproject.org/rpms/cab.git /var/lib/mock/f38-build-side-42-init-devel-989025-29088/root/chroot_tmpdir/scmroot/cab
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-989025-29088/root/chroot_tmpdir/scmroot/cab'...
$ git fetch origin 2466e8963d8eff60107a73979052c29f8978b574:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cab
 * [new ref]         2466e8963d8eff60107a73979052c29f8978b574 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2466e89 really bump release