app: correctly pass reference on empty forms (no jio result) to children

js/erp5_loader.js

@@ -6321,7 +6321,8 @@
       search, search_id, kid, is_html, is_dynamic, is_id, i, j, k, last,
       encoded, wrapper, active, selector, update_target, target, widget,
       quirk_dict, generator, pointer_results, data_total_rows, is_parameter,
-      param_len, parameter, no_item, dyno, container, has_props, widget_dyno;
+      param_len, parameter, no_item, dyno, container, has_props, widget_dyno,
+      set_reference;
 
     pass = reply.pass;
     pass.config_dict = pass.config_dict || {};
@@ -6443,7 +6444,21 @@
       // no items, need no show! (default to empty {} if none provided
       if (pointer_results.data.total_rows === 0) {
         if (quirk_dict.allow_new || quirk_dict.force_new) {
-          pointer_results = {"data": {"total_rows": 1, "rows": [{"doc": {}}]}};
+
+          // NOTE: on updates with force_new, reference must be passed to not
+          // have undefined form-id values
+          if (quirk_dict.update) {
+            set_reference = {
+              "doc": {},
+              "reference": pass.url_dict.reference
+            };
+          }
+          pointer_results = {
+            "data": {
+              "total_rows": 1,
+              "rows": [set_reference || {"doc": {}}]
+            }
+          };
         } else {
           quirk_dict.no_show = quirk_dict.no_items || {};
         }