BUG #18078: createdb not working

The following bug has been logged on the website:

Bug reference:      18078
Logged by:          Orhan Punar
Email address:      exaltedsoft@gmail.com
PostgreSQL version: 15.4
Operating system:   ubuntu 22.04.03
Description:

Hi, 

Since i updated postgresql i receive errors when i try to createdb as
postgres user. The new package has bugs, it has affected my server instances
as well. Is this a known bug?

Best regards,
Orhan Punar