[bug #63527] [mdoc] .Nm duplicates optional parameter in "NAME" section

[John Gardner]

URL:
  <https://savannah.gnu.org/bugs/?63527>

                 Summary: [mdoc] .Nm duplicates optional parameter in "NAME"
section
                 Project: GNU troff
               Submitter: alhadis
               Submitted: Thu 15 Dec 2022 10:06:18 AM AEDT
                Category: Macro mdoc
                Severity: 3 - Normal
              Item Group: Incorrect behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Thu 15 Dec 2022 10:06:18 AM AEDT By: John Gardner <alhadis>
Using the latest build of Groff (94746cbd4), I'm seeing duplicate output in
man pages whose _"NAME"_ sections contain multiple calls to *.Nm*:

NAME
       foo, baz, baz, qux qux — program description

DESCRIPTION
       This is a test of foo, baz and qux.


Other sections are unaffected, as is the initial call to *.Nm* that populates
\*[doc-topic-name].

To reproduce:

.Dd December 15, 2022
.Dt FOO 1
.Os
.Sh NAME
.Nm foo ,
.Nm baz ,
.Nm qux
.Nd program description
.Sh DESCRIPTION
This is a test of
.Nm foo ,
.Nm baz
and
.Nm qux .


I also have an mdoc.local
<https://github.com/Alhadis/.files/blob/e3b3f83fe50d1818a94875a7d4ff5dfaf9ecdbd0/share/tmac/mdoc.local>
file linked to my site-tmac directory, but removing it has no bearing on the
result.







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