[Bf-extensions-cvs] [2f425cc1] master: STL: fix T72145 crash exporting object without data

[Mikhail Rachinskiy]

Commit: 2f425cc128b8b709cc1ebf2c96ad372778f4aeda
Author: Mikhail Rachinskiy
Date:   Wed Dec 4 08:46:23 2019 +0400
Branches: master
https://developer.blender.org/rBA2f425cc128b8b709cc1ebf2c96ad372778f4aeda

STL: fix T72145 crash exporting object without data

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

M	io_mesh_stl/blender_utils.py

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

diff --git a/io_mesh_stl/blender_utils.py b/io_mesh_stl/blender_utils.py
index 8589e196..97621d11 100644
--- a/io_mesh_stl/blender_utils.py
+++ b/io_mesh_stl/blender_utils.py
@@ -80,7 +80,8 @@ def faces_from_mesh(ob, global_matrix, use_mesh_modifiers=False):
     import bpy
 
     # get the editmode data
-    ob.update_from_editmode()
+    if ob.mode == "EDIT":
+        ob.update_from_editmode()
 
     # get the modifiers
     if use_mesh_modifiers:
@@ -94,6 +95,7 @@ def faces_from_mesh(ob, global_matrix, use_mesh_modifiers=False):
         mesh = mesh_owner.to_mesh()
     except RuntimeError:
         return
+
     if mesh is None:
         return