$ git clone -n https://src.fedoraproject.org/rpms/kf5-kblog.git /var/lib/mock/f40-build-743465-111225/root/chroot_tmpdir/scmroot/kf5-kblog
Cloning into '/var/lib/mock/f40-build-743465-111225/root/chroot_tmpdir/scmroot/kf5-kblog'...
$ git fetch origin 6898eef71a61f151fda63c7e7f2bf5d8b0eb4c75:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kblog
 * [new ref]         6898eef71a61f151fda63c7e7f2bf5d8b0eb4c75 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6898eef Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild