[Bf-blender-cvs] [c1b8ce31709] blender2.8: Fix crash in loose edge check

[Campbell Barton]

Commit: c1b8ce31709286a6a007e3970a1b1f777fef7ce3
Author: Campbell Barton
Date:   Tue Oct 16 15:02:30 2018 +1100
Branches: blender2.8
https://developer.blender.org/rBc1b8ce31709286a6a007e3970a1b1f777fef7ce3

Fix crash in loose edge check

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

M	source/blender/draw/intern/draw_cache_impl_mesh.c

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

diff --git a/source/blender/draw/intern/draw_cache_impl_mesh.c b/source/blender/draw/intern/draw_cache_impl_mesh.c
index 85f302607bd..ee9bcee60ba 100644
--- a/source/blender/draw/intern/draw_cache_impl_mesh.c
+++ b/source/blender/draw/intern/draw_cache_impl_mesh.c
@@ -4354,7 +4354,9 @@ static GPUIndexBuf *mesh_batch_cache_get_loose_edges(MeshRenderData *rdata, Mesh
 				BMIter eiter;
 				BMEdge *eed;
 				BM_ITER_MESH(eed, &eiter, bm, BM_EDGES_OF_MESH) {
-					if (!BM_elem_flag_test(eed, BM_ELEM_HIDDEN) && !bm_edge_has_visible_face(eed)) {
+					if (!BM_elem_flag_test(eed, BM_ELEM_HIDDEN) &&
+					    (eed->l == NULL || !bm_edge_has_visible_face(eed)))
+					{
 						GPU_indexbuf_add_line_verts(&elb, BM_elem_index_get(eed->v1),  BM_elem_index_get(eed->v2));
 					}
 				}