Can't create AWM entry with an image attached in a multilingual wiki

1. Create an AWM in a multilingual wiki, with two languages set.
2. Setup a content field in the application
3. Add a new entry, and use CKEditor to upload an image in the content (the source code is shown in a screenshot)
4. Expected result: to have a page containing the object of the AWM class, and the image displayed in the content field.
5. Actual result:
   1. the page displays the content field, but as a regular wiki page without any object.
   2. Yet the xpage=xml shows the structure of the AWM class.
   3. The page is displayed as being translated right away on its bottom right
   4. The page is shown two times in the AWM livetable.

Creating a new entry without image don't cause any issue.
I didn't manage to reproduce on a single language wiki.