$ git clone -n https://src.fedoraproject.org/rpms/xclipboard.git /var/lib/mock/f40-build-804730-144603/root/chroot_tmpdir/scmroot/xclipboard
Cloning into '/var/lib/mock/f40-build-804730-144603/root/chroot_tmpdir/scmroot/xclipboard'...
$ git fetch origin ec0735a7551ba37864bc88740c5c41796ff29335:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xclipboard
 * [new ref]         ec0735a7551ba37864bc88740c5c41796ff29335 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec0735a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild