Fix referenceresults widget view mode (senaite#2128)

Author: ramonski

src/bika/lims/browser/widgets/referenceresultswidget.py

@@ -272,6 +272,12 @@ def ReferenceResults(self, field, allow_edit=False):
         # Call listing hooks
         table.update()
         table.before_render()
+
+        if allow_edit is False:
+            # This is a hack to notify read-only mode to the view
+            table.allow_edit = allow_edit
+            return table.contents_table_view()
+
         return table.ajax_contents_table()