$ git clone -n https://src.fedoraproject.org/rpms/tkabber.git /var/lib/mock/f40-build-2331077-59049/root/chroot_tmpdir/scmroot/tkabber
Cloning into '/var/lib/mock/f40-build-2331077-59049/root/chroot_tmpdir/scmroot/tkabber'...
$ git fetch origin 1cc996a6548ceef0cdf12cc2837a4270f3555904:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tkabber
 * [new ref]         1cc996a6548ceef0cdf12cc2837a4270f3555904 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cc996a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild