$ git clone -n https://src.fedoraproject.org/rpms/LabPlot.git /var/lib/mock/f39-build-2178655-51116/root/chroot_tmpdir/scmroot/LabPlot
Cloning into '/var/lib/mock/f39-build-2178655-51116/root/chroot_tmpdir/scmroot/LabPlot'...
$ git fetch origin 663e3b07e92d14ee335a84a55ff9dc377a6a2e00:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/LabPlot
 * [new ref]         663e3b07e92d14ee335a84a55ff9dc377a6a2e00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 663e3b0 fix optional dependencies