Describe the bug
As a user, when I edit my initiative, there are not translated attributes that are displayed in the title and the description fields.

To Reproduce
Steps to reproduce the behavior:

1. Create an initiative
2. Click on 'Edit my initiative'
3. See not translated attributes displayed in the title and description fields of the modification form.

Expected behavior
Not translated attributes should not be displayed.

Screenshots
Not translated attribute displayed in the modification form :

Not translated attribute in my initiative after editing it :

Stacktrace
If applicable, add the error stacktrace to help explain your problem.

Extra data (please complete the following information):

• Decidim Version: 0.28
• Decidim installation: Nightly

Additional context
Add any other context about the problem here. For instance, add Metadecidim link.