Fix same bug in cosym too, occurs when no profile reflections were fitted.
Fix same bug in cosym too, occurs when no profile reflections were fitted.

If no profile reflections fitted (e.g. because only partials), then
the result of filtering can return a table with only sum intensities,
so an extra check must be made.

dials/dials,dials/dials,dials/dials,dials/dials,dials/dials