--- lwgeom/lwgeom_functions_basic.c.orig	2007-05-31 06:18:04.000000000 -0700
+++ lwgeom/lwgeom_functions_basic.c	2008-03-27 14:07:58.000000000 -0700
@@ -2726,14 +2726,14 @@
 	if ( TYPE_GETTYPE(g1->type) != TYPE_GETTYPE(g2->type) )
 	{
 		PG_FREE_IF_COPY(g1, 0);
-		PG_FREE_IF_COPY(g2, 0);
+		PG_FREE_IF_COPY(g2, 1);
 		PG_RETURN_BOOL(FALSE); /* different types */
 	}
 
 	if ( TYPE_GETZM(g1->type) != TYPE_GETZM(g2->type) )
 	{
 		PG_FREE_IF_COPY(g1, 0);
-		PG_FREE_IF_COPY(g2, 0);
+		PG_FREE_IF_COPY(g2, 1);
 		PG_RETURN_BOOL(FALSE); /* different dimensions */
 	}