$ git clone -n https://src.fedoraproject.org/rpms/apptainer.git /var/lib/mock/f40-build-2586040-62422/root/chroot_tmpdir/scmroot/apptainer
Cloning into '/var/lib/mock/f40-build-2586040-62422/root/chroot_tmpdir/scmroot/apptainer'...
$ git fetch origin b3c644dbbf589a15105f15aab6ebd0ae01577ce9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/apptainer
 * [new ref]         b3c644dbbf589a15105f15aab6ebd0ae01577ce9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3c644d update to 1.3.0