Steps to reproduce:

1. Clean installation of Ibexa DXP.
2. Create the second language, for example fre-FR.
3. Add second site access with this language.
4. Create form in language eng-GB.
5. Translate this form to fre-FR.
6. Submit the form in eng-GB and in fre-FR.
7. Enter Submissions tab in the Back Office for this form.
8. Try to change the language of the submissions.

Result:
Submissions don't change properly, only the view param's language is shown

Expected result:
Proper submissions are shown depending on the chosen language.