$ git clone -n https://src.fedoraproject.org/rpms/tcmu-runner.git /var/lib/mock/f40-build-796038-140456/root/chroot_tmpdir/scmroot/tcmu-runner
Cloning into '/var/lib/mock/f40-build-796038-140456/root/chroot_tmpdir/scmroot/tcmu-runner'...
$ git fetch origin 5b3a6feae564259d91915d1fcc3bade2be45bcce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcmu-runner
 * [new ref]         5b3a6feae564259d91915d1fcc3bade2be45bcce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b3a6fe Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild