Avoid __str__ check on abstract ContentItem classes
Avoid __str__ check on abstract ContentItem classes

edoburu/django-fluent-contents,django-fluent/django-fluent-contents,django-fluent/django-fluent-contents,edoburu/django-fluent-contents,jpotterm/django-fluent-contents,ixc/django-fluent-contents,ixc/django-fluent-contents,jpotterm/django-fluent-contents,django-fluent/django-fluent-contents,ixc/django-fluent-contents,jpotterm/django-fluent-contents,edoburu/django-fluent-contents