BUG #17814: Detail info on kerbos authentication

The following bug has been logged on the website:

Bug reference:      17814
Logged by:          Vivek Reddy
Email address:      an.vivek.r@gmail.com
PostgreSQL version: 14.3
Operating system:   Aws
Description:

Hi 
I have enabled kerbos authentication on server and aws manged directory
service has been set up 

Now when I create user@dmn.com to a user in AD is working but
If I want create user@dmn.com to a group instead of single user
It's not working 

In oracle we have created user identified global "cn=group,dc=dmn,dc=Com" ku
e that I want in postgresql