$ git clone -n https://src.fedoraproject.org/rpms/xfburn.git /var/lib/mock/f40-build-2333122-59201/root/chroot_tmpdir/scmroot/xfburn
Cloning into '/var/lib/mock/f40-build-2333122-59201/root/chroot_tmpdir/scmroot/xfburn'...
$ git fetch origin e31eaa3254f13ace0ea2cc1eec7325c6746b7f55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfburn
 * [new ref]         e31eaa3254f13ace0ea2cc1eec7325c6746b7f55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e31eaa3 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild