[Bf-blender-cvs] [5ccaef6d678] master: Fix T51737: Material properties error

[Campbell Barton]

Commit: 5ccaef6d678c1714c5c2bb6581ba141f4d03876f
Author: Campbell Barton
Date:   Mon Jun 12 12:55:47 2017 +1000
Branches: master
https://developer.blender.org/rB5ccaef6d678c1714c5c2bb6581ba141f4d03876f

Fix T51737: Material properties error

D2706 by @knox

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

M	release/scripts/startup/bl_ui/properties_material.py

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

diff --git a/release/scripts/startup/bl_ui/properties_material.py b/release/scripts/startup/bl_ui/properties_material.py
index dc82bb0d69b..73740df37e8 100644
--- a/release/scripts/startup/bl_ui/properties_material.py
+++ b/release/scripts/startup/bl_ui/properties_material.py
@@ -124,9 +124,10 @@ class MATERIAL_PT_context_material(MaterialButtonsPanel, Panel):
         ob = context.object
         slot = context.material_slot
         space = context.space_data
-        is_sortable = (len(ob.material_slots) > 1)
 
         if ob:
+            is_sortable = (len(ob.material_slots) > 1)
+
             rows = 1
             if is_sortable:
                 rows = 4