Fixed #34025 -- Fixed selecting ModelAdmin.autocomplete_fields after adding/changing related instances via popups.

Regression in c72f6f36c1.

Thanks Alexandre da Silva for the report.

tests/admin_views/admin.py

@@ -1165,6 +1165,14 @@ class GetFormsetsArgumentCheckingAdmin(admin.ModelAdmin):
         return super().get_formsets_with_inlines(request, obj)
 
 
+class CountryAdmin(admin.ModelAdmin):
+    search_fields = ["name"]
+
+
+class TravelerAdmin(admin.ModelAdmin):
+    autocomplete_fields = ["living_country"]
+
+
 site = admin.AdminSite(name="admin")
 site.site_url = "/my-site-url/"
 site.register(Article, ArticleAdmin)
@@ -1286,8 +1294,8 @@ site.register(ExplicitlyProvidedPK, GetFormsetsArgumentCheckingAdmin)
 site.register(ImplicitlyGeneratedPK, GetFormsetsArgumentCheckingAdmin)
 site.register(UserProxy)
 site.register(Box)
-site.register(Country)
-site.register(Traveler)
+site.register(Country, CountryAdmin)
+site.register(Traveler, TravelerAdmin)
 
 # Register core models we need in our tests
 site.register(User, UserAdmin)