$ git clone -n https://src.fedoraproject.org/rpms/dar.git /var/lib/mock/f40-build-2433334-60699/root/chroot_tmpdir/scmroot/dar
Cloning into '/var/lib/mock/f40-build-2433334-60699/root/chroot_tmpdir/scmroot/dar'...
$ git fetch origin f1c597a538fbc385fd48b9387d41e583ff54ff7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dar
 * [new ref]         f1c597a538fbc385fd48b9387d41e583ff54ff7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1c597a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild