--- a/src/ldObject.cpp	Fri Feb 03 10:51:08 2017 +0200
+++ b/src/ldObject.cpp	Sat Feb 04 14:24:16 2017 +0200
@@ -950,7 +950,7 @@
 	// If it's an immediate subfile reference (i.e. this subfile is in an opened document), we need to pre-compile the
 	// GL polygons for the document if they don't exist already.
 	if (newReferee and
-		newReferee->isCache() == false and
+		newReferee->isFrozen() == false and
 		newReferee->polygonData().isEmpty())
 	{
 		newReferee->initializeCachedData();