fix row merge

cntmanage/flightslot/actions/exportweek.py

@@ -179,6 +179,8 @@ def export_selected(request: HttpRequest, queryset: QuerySet[WeekPreference]) ->
                                     start_column=max(merge_col_start,1),
                                     end_column=max(c-1,1)) # end merge to previous column
                 prev_cell_val = cell_content
+                if c >= note_index - 1: # Do not merge beyond notes
+                    break
             
             # Incement row counter
             row_offset += 1