$ git clone -n https://src.fedoraproject.org/rpms/koko.git /var/lib/mock/f40-build-2349541-60160/root/chroot_tmpdir/scmroot/koko
Cloning into '/var/lib/mock/f40-build-2349541-60160/root/chroot_tmpdir/scmroot/koko'...
$ git fetch origin dce17bc71ef33347a5b11cc47a670e82b92faa6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/koko
 * [new ref]         dce17bc71ef33347a5b11cc47a670e82b92faa6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dce17bc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild