Language switcher not working correctly when prefix_default_language=False

[gleniat]

What version of Unfold are you using?

0.49.1

What version of Django are you using?

5.1

What browser are you using?

Chrome

Did you checked changelog/commit history, if the bug is not already fixed?

Yes

Did you searched other issues, if the bug is not already fixed?

Yes

Did you checked documentation?

Yes

Is example in docs working?

See https://unfoldadmin.com/docs/multi-language/

If I use the code from the example

urlpatterns = (
    [
        path("i18n/", include("django.conf.urls.i18n")),
    ]
    + i18n_patterns(
        path("admin/", admin.site.urls),
    )
)

I get:
/en/admin/ .. English language (default)
/de/admin/ .. German language

...and language switcher works correctly.

Describe your issue

When I set Django to have the default language without prefix:

urlpatterns = (
    [
        path("i18n/", include("django.conf.urls.i18n")),
    ]
    + i18n_patterns(
        path("admin/", admin.site.urls),
        prefix_default_language=False,
    )
)

I get:
/admin/ .. English language (default)
/de/admin/ .. German language

... and language switcher works PARTIALLY. User can switch to the German language, but cannot switch back to the default language using the language switcher.

[raqamiaattechnology]

@gleniat Hi bro,
did you solve this problem? If you solved it, please send me the solution.
Thanks.

[lukasvinclav]

@gleniat @raqamiaattechnology https://unfoldadmin.com/docs/configuration/multi-language/

Check this section "Overriding language options"