[Bf-blender-cvs] [e0bd5787427] greasepencil-object: Fix error when make single user

[Antonio Vazquez]

Commit: e0bd5787427fa3f2befdce15f4f802af900ee173
Author: Antonio Vazquez
Date:   Tue Jul 25 12:51:20 2017 +0200
Branches: greasepencil-object
https://developer.blender.org/rBe0bd5787427fa3f2befdce15f4f802af900ee173

Fix error when make single user

===================================================================

M	source/blender/blenkernel/intern/gpencil.c

===================================================================

diff --git a/source/blender/blenkernel/intern/gpencil.c b/source/blender/blenkernel/intern/gpencil.c
index 05cdbd99b30..73c1a0b6cc0 100644
--- a/source/blender/blenkernel/intern/gpencil.c
+++ b/source/blender/blenkernel/intern/gpencil.c
@@ -867,6 +867,7 @@ bGPDlayer *BKE_gpencil_layer_duplicate(const bGPDlayer *gpl_src)
 	/* make a copy of source layer */
 	gpl_dst = MEM_dupallocN(gpl_src);
 	gpl_dst->prev = gpl_dst->next = NULL;
+	gpl_dst->derived_gpf = NULL;
 	
 	/* copy frames */
 	BLI_listbase_clear(&gpl_dst->frames);