$ git clone -n https://src.fedoraproject.org/rpms/knemo.git /var/lib/mock/f40-build-2726040-73122/root/chroot_tmpdir/scmroot/knemo
Cloning into '/var/lib/mock/f40-build-2726040-73122/root/chroot_tmpdir/scmroot/knemo'...
$ git fetch origin 91241147d5a20a32d6a941265013efca0ec9f0f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knemo
 * [new ref]         91241147d5a20a32d6a941265013efca0ec9f0f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9124114 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild