django-modeltranslation and inherited models

[Shmuel Tauber]

Assuming you have 2 models

class A ( models.Model ):

    recipient = models.CharField( max_length = 512 )

    subject = models.CharField( max_length = 128 )

and class B

class B ( A ):

    message_html = models.TextField()

what is the right way to translate the "subject" field

I have tried all sorts of ways, and nothing seems to work.

I get error either in the web or the  update_translation_fields management command

 

I will be glad for any help