$ git clone -n https://src.fedoraproject.org/rpms/kf6-kplotting.git /var/lib/mock/f42-build-863246-171569/root/chroot_tmpdir/scmroot/kf6-kplotting
Cloning into '/var/lib/mock/f42-build-863246-171569/root/chroot_tmpdir/scmroot/kf6-kplotting'...
$ git fetch origin c49895e06ad8442e3827a50fa026bdc00df2908c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kplotting
 * [new ref]         c49895e06ad8442e3827a50fa026bdc00df2908c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c49895e Frameworks 6.9