app: allow form widget to be updated (refreshed)

js/erp5_loader.js

@@ -1483,6 +1483,9 @@
     container = document.createDocumentFragment();
     form_id = "form_" + util.uuid();
     item_id = spec.data ? (spec.data._id || undefined) : undefined;
+    if (spec.update) {
+      form = document.createDocumentFragment();
+    } else {
       form = factory.element({
         "type": "form",
         "direct": {
@@ -1491,13 +1494,17 @@
           "action": "#",
           "className": (spec.class_list || "")
         },
-      "attributes": {"data-ajax": false, "autocomplete": "off"},
+        "attributes": {
+          "data-ajax": false,
+          "autocomplete": "off",
+          "data-widget": "form"
+        },
         "logic": {
           "data-reference": spec.reference || null,
-        "data-depend": spec.depend || null,
-        "data-reset": spec.reset || null
+          "data-map": spec.map_children || null
         }
       });
+    }
 
     // NOTE: needed to differentiate between PUT/POST
     // TODO: block_identifier is only used for release_install, find better!