Hello. I think that being hard-coded refers more to this part. https: //svn.apache.org /viewvc/httpd/httpd/branches/2.4.x/os/unix/unixd.h?revision=1797368&view=markup#l68
The current patch concerns whether to create users and groups with predefined UIDs and GIDs, so it seems reasonable to provide the option not to create them using ?=. Regards.
