$ git clone -n https://src.fedoraproject.org/rpms/dfc.git /var/lib/mock/f40-build-797063-141055/root/chroot_tmpdir/scmroot/dfc
Cloning into '/var/lib/mock/f40-build-797063-141055/root/chroot_tmpdir/scmroot/dfc'...
$ git fetch origin 1738e1b1cd0c1258b41e3a70b5d6fff236ef91a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dfc
 * [new ref]         1738e1b1cd0c1258b41e3a70b5d6fff236ef91a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1738e1b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild