added Q function at exclude draft on business layer of change request forms

app/businesslayer/changerequest/change_request.py

@@ -71,8 +71,8 @@ def list_by_user(user_id_number):
             form_code__in=form_code
         )
         exclude = return_queryset.filter(
-            status__icontains='Draft',
-            requested_by_user__ne=user_id_number
+            Q(status__icontains='Draft') &
+            Q(requested_by_user__ne=user_id_number)
         )
         exclude = [data.form_code for data in exclude]