$ git clone -n https://src.fedoraproject.org/rpms/gtk-doc.git /var/lib/mock/f40-build-2348641-60148/root/chroot_tmpdir/scmroot/gtk-doc
Cloning into '/var/lib/mock/f40-build-2348641-60148/root/chroot_tmpdir/scmroot/gtk-doc'...
$ git fetch origin 605672e5b7251a84d6e7e0ea4ada3778a05a5ea5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtk-doc
 * [new ref]         605672e5b7251a84d6e7e0ea4ada3778a05a5ea5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 605672e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild