$ git clone -n https://src.fedoraproject.org/rpms/kf6-kquickcharts.git /var/lib/mock/f40-build-2500071-61672/root/chroot_tmpdir/scmroot/kf6-kquickcharts
Cloning into '/var/lib/mock/f40-build-2500071-61672/root/chroot_tmpdir/scmroot/kf6-kquickcharts'...
$ git fetch origin 9367be687753df1b7f2b31c173c9395c7bc72b8c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kquickcharts
 * [new ref]         9367be687753df1b7f2b31c173c9395c7bc72b8c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9367be6 6.0.0