Steps:

1. Add a new language, for example: French/fre-FR
2. Go to Admin/Content Types/Content
3. Create new Content Type with following fields: ezstring and ezrichtext
4. Create new Content Item using CT from previous step
5. Fill the fields and publish
6. Open created content item and go to translations tab
7. Click button and choose French
8. Fill the fields and click Publish

Actual result:

No route found for "GET /zxc-fr" (from "http://127.0.0.1:8000/admin/content/53/translate/fre-FR") is displayed.

Expected result:

Content is created. Or if user missed something, we need nice, user-friendly information.