Index: trunk/psphot/src/psphotEnsemblePSF.c
===================================================================
--- trunk/psphot/src/psphotEnsemblePSF.c	(revision 6949)
+++ trunk/psphot/src/psphotEnsemblePSF.c	(revision 8470)
@@ -188,5 +188,5 @@
 
 	// need to increment counter so we can free models here and sources above
-	Fi->modelPSF = psMemCopy (Mi->modelPSF);
+	Fi->modelPSF = psMemIncrRefCounter (Mi->modelPSF);
 
 	// assign linearly-fitted normalization