[FIX] web_widget_x2many_2d_matrix: Init correctly the view

web_widget_x2many_2d_matrix/static/src/js/web_widget_x2many_2d_matrix.js

@@ -404,7 +404,7 @@ odoo.define('web_widget_x2many_2d_matrix.widget', function (require) {
 
             return $.when(result).then(function()
             {
-                self.set_value(self.get_value());
+                self.renderElement();
             });
         },
     });