$ git clone -n https://src.fedoraproject.org/rpms/ultimatestunts.git /var/lib/mock/f40-build-794006-139322/root/chroot_tmpdir/scmroot/ultimatestunts
Cloning into '/var/lib/mock/f40-build-794006-139322/root/chroot_tmpdir/scmroot/ultimatestunts'...
$ git fetch origin de364d092b658bf31803b1d8ab521ec194ec477b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ultimatestunts
 * [new ref]         de364d092b658bf31803b1d8ab521ec194ec477b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de364d0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild