[FIX] web: multiedit in a grouped list view: enable fetchBatchedM2O and References

Have grouped list with reference a m2o or a reference field

Select some records, edit them

Before this commit: the names of the reference fields and m2o disappeared

That was because the saveRecords function did not take into account a grouped list

manual forward port of #65999

After this commit: it works as expected

closes odoo/odoo#66043

closes odoo/odoo#66140

Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>

1 files changed, 11 insertions, 4 deletions

diff --git a/addons/web/static/src/js/views/list/list_model.js b/addons/web/static/src/js/views/list/list_model.js
index 5d40343ef8d..5a8771c0da3 100644
--- a/addons/web/static/src/js/views/list/list_model.js
+++ b/addons/web/static/src/js/views/list/list_model.js
@@ -82,10 +82,17 @@ odoo.define('web.ListModel', function (require) {
                     self._parseServerData(fieldNames, record, record.data);
                 });
             }).then(function () {
-                return Promise.all([
-                    self._fetchX2ManysBatched(list),
-                    self._fetchReferencesBatched(list)
-                ]);
+                if (!list.groupedBy.length) {
+                    return Promise.all([
+                        self._fetchX2ManysBatched(list),
+                        self._fetchReferencesBatched(list)
+                    ]);
+                } else {
+                    return Promise.all([
+                        self._fetchX2ManysSingleBatch(list),
+                        self._fetchReferencesSingleBatch(list)
+                    ]);
+                }
             });
         },