[poincare] Handle parentheses sizing.

Change-Id: I3f790c0eb73b566dd7de7089957ea0d4306821c2

apps/expression_editor/controller.cpp

@@ -49,6 +49,7 @@ void Controller::insertLayoutAtCursor(ExpressionLayout * layout, ExpressionLayou
   m_cursor.setPointedExpressionLayout(pointedLayout);
   m_cursor.setPosition(ExpressionLayoutCursor::Position::Right);
   m_cursor.setPositionInside(0);
+  m_expressionLayout->invalidAllSizesPositionsAndBaselines();
   m_view.cursorPositionChanged();
 }