[FIX] web: Kanban: quick create several records in a row

Before this rev., when quick creating a record in a grouped kanban
view, the quick create widget wasn't automatically re-opened, which
didn't allow the user to quickly create several records in a row
(without clicking each time on the '+').

This desired behavior had been broken by rev. 1d34e26, which aimed
to properly reload the kanban column when a record was created
(e.g. column counter, progress bar...).

addons/web/static/src/js/views/kanban/kanban_controller.js

@@ -355,11 +355,13 @@ var KanbanController = BasicController.extend({
                     self._updateEnv();
 
                     var columnState = self.model.getColumn(db_id);
-                    return self.renderer.updateColumn(columnState.id, columnState).then(function () {
-                        if (event.data.openRecord) {
-                            self.trigger_up('open_record', {id: db_id, mode: 'edit'});
-                        }
-                    });
+                    return self.renderer
+                        .updateColumn(columnState.id, columnState, {openQuickCreate: true})
+                        .then(function () {
+                            if (event.data.openRecord) {
+                                self.trigger_up('open_record', {id: db_id, mode: 'edit'});
+                            }
+                        });
                 });
         }
     },

addons/web/static/src/js/views/kanban/kanban_renderer.js

@@ -141,15 +141,23 @@ var KanbanRenderer = BasicRenderer.extend({
      *
      * @param {string} localID the column id
      * @param {Object} columnState
+     * @param {Object} [options]
+     * @param {boolean} [options.openQuickCreate] if true, directly opens the
+     *   QuickCreate widget in the updated column
      *
      * @returns {Deferred}
      */
-    updateColumn: function (localID, columnState) {
+    updateColumn: function (localID, columnState, options) {
         var newColumn = new KanbanColumn(this, columnState, this.columnOptions, this.recordOptions);
         var index = _.findIndex(this.widgets, {db_id: localID});
         var column = this.widgets[index];
         this.widgets[index] = newColumn;
-        return newColumn.insertAfter(column.$el).then(column.destroy.bind(column));
+        return newColumn.insertAfter(column.$el).then(function () {
+            if (options && options.openQuickCreate) {
+                newColumn.addQuickCreate();
+            }
+            column.destroy();
+        });
     },
     /**
      * Updates a given record with its new state.