Add items already linked to dataset users / files field, even if the

user does not have write access to them.

portal/views/secure/dataset.py

@@ -94,9 +94,10 @@ class DataSetUpdateView(LoginRequiredMixin, UpdateViewMixin, UpdateView):
     template_name = 'portal/secure/user/create_update.html'
 
     def get_form(self, form_class=None):
+        o = self.get_object()
         form = super().get_form(form_class)
-        form.fields['share_profiles'].queryset = Profile.objects.exclude_profile(self.request.user.profile)
-        form.fields['files'].queryset = DataFile.objects.limit_to_profile(self.request.user.profile)
+        form.fields['share_profiles'].queryset = (Profile.objects.exclude_profile(self.request.user.profile) | o.share_profiles.all()).distinct()
+        form.fields['files'].queryset = (DataFile.objects.limit_to_profile(self.request.user.profile) | o.files.all()).distinct()
         return form
 
     def form_valid(self, form):