fix [#27149] OBJ import does not import OBJ vertex/poly groups, produ…

…ces error messages

disable polygroup by default too.

io_scene_obj/__init__.py

@@ -66,7 +66,7 @@ class ImportOBJ(bpy.types.Operator, ImportHelper):
  # KEEP_VERT_ORDER = BoolProperty(name="Keep Vert Order", description="Keep vert and face order, disables split options, enable for morph targets", default= True)
  ROTATE_X90 = BoolProperty(name="-X90", description="Rotate X 90.", default=True)
  CLAMP_SIZE = FloatProperty(name="Clamp Scale", description="Clamp the size to this maximum (Zero to Disable)", min=0.0, max=1000.0, soft_min=0.0, soft_max=1000.0, default=0.0)
- POLYGROUPS = BoolProperty(name="Poly Groups", description="Import OBJ groups as vertex groups.", default=True)
+ POLYGROUPS = BoolProperty(name="Poly Groups", description="Import OBJ groups as vertex groups.", default=False)
  IMAGE_SEARCH = BoolProperty(name="Image Search", description="Search subdirs for any assosiated images (Warning, may be slow)", default=True)
 
  def execute(self, context):

io_scene_obj/import_obj.py

@@ -857,7 +857,7 @@ def edges_match(e1, e2):
  # content of the vertex_groups. If the user selects to NOT have vertex groups saved then
  # the following test will never run
  for group_name, group_indices in vertex_groups.items():
- group = ob.vertex_groups.new(group_name)
+ group = ob.vertex_groups.new(group_name.decode('utf-8', "replace"))
  group.add(group_indices, 1.0, 'REPLACE')
 
 
@@ -1209,7 +1209,7 @@ def load(operator, context, filepath,
 
  if context_parm.lower() == b'u':
  context_nurbs.setdefault(b'parm_u', []).extend([float_func(f) for f in line_split])
- elif context_parm.lower() == b'v': # surfaces not suported yet
+ elif context_parm.lower() == b'v': # surfaces not supported yet
  context_nurbs.setdefault(b'parm_v', []).extend([float_func(f) for f in line_split])
  # else: # may want to support other parm's ?