Fix user creation in admin

Author: MasloMaslane

oioioi/base/admin.py

@@ -359,6 +359,12 @@ class OioioiUserAdmin(UserAdmin, ObjectWithMixins, metaclass=ModelAdminMeta):
         (_("Permissions"), {'fields': ('is_active', 'is_superuser', 'groups')}),
         (_("Important dates"), {'fields': ('last_login', 'date_joined')}),
     )
+    add_fieldsets = (
+        (None, {
+            'classes': ('wide',),
+            'fields': ('username', 'password1', 'password2'),
+        }),
+    )
     list_filter = ['is_superuser', 'is_active']
     list_display = ['username', 'email', 'first_name', 'last_name', 'is_active']
     filter_horizontal = ()