$ git clone -n https://src.fedoraproject.org/rpms/tilp_and_gfm.git /var/lib/mock/f39-build-1622206-38779/root/chroot_tmpdir/scmroot/tilp_and_gfm
Cloning into '/var/lib/mock/f39-build-1622206-38779/root/chroot_tmpdir/scmroot/tilp_and_gfm'...
$ git fetch origin bbfa9de126f2b1f60b11b558fc488615da6476fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tilp_and_gfm
 * [new ref]         bbfa9de126f2b1f60b11b558fc488615da6476fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbfa9de Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild