Display a message if there are no property groups yet within product MI.
Display a message if there are no property groups yet within product MI.

diefenbach/django-lfs,pigletto/django-lfs,wisonwang/django-lfs,wisonwang/django-lfs,baffolobill/django-lfs,pigletto/django-lfs,leadbrick/django-lfs,diefenbach/django-lfs,diefenbach/django-lfs,pigletto/django-lfs,baffolobill/django-lfs,leadbrick/django-lfs,wisonwang/django-lfs,leadbrick/django-lfs,baffolobill/django-lfs