--- a/src/lddocument.h	Sun Mar 18 12:00:39 2018 +0200
+++ b/src/lddocument.h	Sun Mar 18 12:33:29 2018 +0200
@@ -147,6 +147,7 @@
 	bool m_verticesOutdated = true;
 	bool m_isBeingDestroyed = false;
 	bool m_needsRecache = true; // The next polygon inline of this document rebuilds stored polygon data.
+	bool m_isInlining = false;
 	long m_savePosition;
 	int m_tabIndex;
 	int m_triangleCount;