Cannot use anonymous user with LDAP

[ImmortalLotus]

Environment

Flask-Appbuilder version: Apache Superset 3.1.0

pip freeze output: Apache Superset 3.1.0

Describe the expected results

AUTH_ROLE_PUBLIC should still enable public, login-less access when LDAP is enabled.
This is even when public role has permissions as follows, which on an AUTH_DB config work just fine for public access:

Describe the actual results

with LDAP it blocks ALL access to application unless logged.

Steps to reproduce

Use an LDAP config
Try to access application without login
Get redirected to login page.