A 404 error with “id-” in slug on multilingual website with Indonesian language

[osxisl]

​http://example.com/de/id-button/ - 200 OK
​http://example.com/id/id-button/ - 200 OK
​http://example.com/any-other-slug/ - 200 OK
​http://example.com/id-button/ - 404 error:

Using the URLconf defined in example.urls, Django tried these URL patterns, in this order:
id/
The current path, id-button/, didn't match any of these.
urls.py file:

urlpatterns = i18n_patterns(
    path('admin/', admin.site.urls),
    path('', cache_page(cache_homepage)(homepage_views.index), name='index'),
    path('search/', search_views.search, name='search'),
    path('<slug:slug>/', emoji_views.emoji, name='item'),
    prefix_default_language=False,
)

The item have a slug field in DB "id-button". If I rename this to "idbutton": ​http://example.com/idbutton/ - 200 OK