Basic editor and shape update.

src/Mod/Path/PathScripts/PathMillFace.py

@@ -80,7 +80,8 @@ class ObjectFace(PathPocketBase.ObjectPocket):
         # default depths calculation not correct for facing
         if prop == "Base":
             job = PathUtils.findParentJob(obj)
-            obj.OpStartDepth = job.Stock.Shape.BoundBox.ZMax
+            if job:
+                obj.OpStartDepth = job.Stock.Shape.BoundBox.ZMax
 
             if len(obj.Base) >= 1:
                 print('processing')
@@ -95,7 +96,7 @@ class ObjectFace(PathPocketBase.ObjectPocket):
             # Otherwise, top of part.
 
                 obj.OpFinalDepth = Part.makeCompound(sublist).BoundBox.ZMax
-            else:
+            elif job:
                 obj.OpFinalDepth = job.Proxy.modelBoundBox(job).ZMax
 
     def areaOpShapes(self, obj):