$ git clone -n https://src.fedoraproject.org/rpms/gimp.git /var/lib/mock/f40-build-2118003-50725/root/chroot_tmpdir/scmroot/gimp
Cloning into '/var/lib/mock/f40-build-2118003-50725/root/chroot_tmpdir/scmroot/gimp'...
$ git fetch origin a9e77856bb8134898cedd42948b295740246e583:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gimp
 * [new ref]         a9e77856bb8134898cedd42948b295740246e583 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9e7785 Fix the babl dependency on Fedora < 39