the user field of one of the app is the foreign key of UserProfile (AbstractUser). After registration in admin, it does not display a drop-down list, but a search box. The result I want is a drop-down list
it has been tested that associations can be displayed after registration of normal model classes, but not in models where one-to-many associations inherit from AbstractUser.
related code (app has been added to setting.py and the original user model of admin-AUTH_USER_MODEL = "user.UserProfile") has been overwritten
figure: what I want is that the user name also displays a drop-down list as above or below, showing the associated user information, rather than the input search box. (it is clear that the inverted triangle is displayed on the right, but the click only flashes for a moment, and there is no response. )