$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcontacts.git /var/lib/mock/f40-build-2292538-56143/root/chroot_tmpdir/scmroot/kf5-kcontacts
Cloning into '/var/lib/mock/f40-build-2292538-56143/root/chroot_tmpdir/scmroot/kf5-kcontacts'...
$ git fetch origin 4694fd11c3729028a493fdd08864294446c996c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kcontacts
 * [new ref]         4694fd11c3729028a493fdd08864294446c996c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4694fd1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild