.%A buglet or misuse?

["Brian J. Kifiak" <bk@rt.fm>]

It appears that either .%A contains a buglet or else it's being used
incorrectly.

Take passwd(1) for example.  In the SEE ALSO section, it lists:

  Robert Morris, and Ken Thompson, UNIX password security.

There shouldn't be a comma after Morris.

The source to this looks like:

  .Rs
  .%A Robert Morris
  .%A Ken Thompson
  .%T "UNIX password security"
  .Re

As a counter example, ksh(1) has nice punctuation:

  Stephen G. Kochan and Patrick H. Wood, UNIX Shell Programming,
  Hayden.

With source looking like:

  .Rs
  .%A Stephen G. Kochan and Patrick H. Wood
  .%T "UNIX Shell Programming"
  .%O "Hayden"      
  .Re

Which should be fixed?