+ std::shared_ptr<ExportData> exportdata;
+
+ /** Whether we are entering a display math inset.
+ * Needed to correctly strike out deleted math in change tracking.
+ */
+ mutable bool inDisplayMath;
+
+ /** Whether we are leaving a display math inset.
+ * Needed to correctly track nested ulem commands in change tracking.
+ */
+ mutable bool wasDisplayMath;