bug: UNION fixed to UNION ALL

app/vkk/workhours/accounting/departments/views.py

@@ -53,7 +53,7 @@ class EvaluationView(AccountantRequiredMixin, FormView):
                         hours \
                     FROM assignments JOIN vkk_workhours \
                         ON assignments.assignment_id = vkk_workhours.project_assignment_id \
-                    UNION \
+                    UNION ALL \
                     SELECT \
                         project_id, \
                         project_start, \