2 files changed, 32 insertions, 4 deletions
diff --git a/addons/web/static/src/js/views/basic/basic_model.js b/addons/web/static/src/js/views/basic/basic_model.js
index c9e28db86c6..865cddba657 100644
--- a/addons/web/static/src/js/views/basic/basic_model.js
+++ b/addons/web/static/src/js/views/basic/basic_model.js
@@ -4172,11 +4172,24 @@ var BasicModel = AbstractModel.extend({
         }
         return def.then(function () {
             var resIDs = [];
-            // generate the current count and res_ids list by applying the changes
-            var currentCount = list.count;
             var currentResIDs = list.res_ids;
-            var effectiveLimit = (list.limit || 0) - (list.tempLimitIncrement || 0);
-            var upperBound = effectiveLimit ? Math.min(list.offset + effectiveLimit, currentCount) : currentCount;
+            // if new records have been added to the list, their virtual ids have
+            // been pushed at the end of res_ids (or at the beginning, depending
+            // on the editable property), ignoring completely the current page
+            // where the records have actually been created ; for that reason,
+            // we use orderedResIDs which is a freezed order with the virtual ids
+            // at the correct position where they were actually inserted ; however,
+            // when we use orderedResIDs, we must filter out ids that are not in
+            // res_ids, which correspond to records that have been removed from
+            // the relation (this information being taken into account in res_ids
+            // but not in orderedResIDs)
+            if (list.orderedResIDs) {
+                currentResIDs = list.orderedResIDs.filter(function (resID) {
+                    return list.res_ids.indexOf(resID) >= 0;
+                });
+            }
+            var currentCount = currentResIDs.length;
+            var upperBound = list.limit ? Math.min(list.offset + list.limit, currentCount) : currentCount;
             var fieldNames = list.getFieldNames();
             for (var i = list.offset; i < upperBound; i++) {
                 var resId = currentResIDs[i];
diff --git a/addons/web/static/src/js/views/basic/basic_view.js b/addons/web/static/src/js/views/basic/basic_view.js
index eb3efe7001d..55fd73eeb50 100644
--- a/addons/web/static/src/js/views/basic/basic_view.js
+++ b/addons/web/static/src/js/views/basic/basic_view.js
@@ -148,6 +148,21 @@ var BasicView = AbstractView.extend({
                             if (_.difference(fieldViewTypes, recordViewTypes).length) {
                                 fieldNames.push(name);
                             }
+
+                            if (record.data[name].viewType === 'default') {
+                                // Use case: x2many (tags) in x2many list views
+                                // When opening the x2many record form view, the
+                                // x2many will be reloaded but it may not have
+                                // the same fields (ex: tags in list and list in
+                                // form) so we need to merge the fieldsInfo to
+                                // avoid losing the initial fields (display_name)
+                                var defaultFieldInfo = record.data[name].fieldsInfo.default;
+                                _.each(fieldViews, function (fieldView) {
+                                    _.each(fieldView.fieldsInfo, function (x2mFieldInfo) {
+                                        _.defaults(x2mFieldInfo, defaultFieldInfo);
+                                    });
+                                });
+                            }
                         }
                     }
                     // Many2one: context is not the same between the different views