@@ -665,6 +665,7 @@ export function modelChangePostFixer( model, writer ) {
}
for (
+ // Cache previousSibling and reuse for performance reasons. See #6581.
let previousSibling = listHead.previousSibling;
previousSibling && previousSibling.is( 'listItem' );
previousSibling = listHead.previousSibling