[BUG] False-positive warning @node name should not contain `,'

Hello,

Consider the following .texi file.
When I try to compile it with makeinfo file.texi, I get
 warning: @node name should not contain `,': This is test, yes
even though the comma is escaped with @comma{}, as suggested by the
manual https://www.gnu.org/software/texinfo/manual/texinfo/html_node/Node-Line-Requirements.html

Texinfo version: 7.2

\input texinfo    @c -*- texinfo -*-
@c %**start of header
@setfilename bug.info
@settitle 
@documentencoding UTF-8
@documentlanguage en
@c %**end of header

@dircategory Misc
@direntry
* (bug).                .
@end direntry

@finalout
@titlepage
@title 
@author Ihor Radchenko
@end titlepage

@contents

@ifnottex
@node Top
@top 
@end ifnottex

@menu
* This is test@comma{} yes::
@end menu

@node This is test@comma{} yes
@chapter This is test@comma{} yes

@bye


-- 
Ihor Radchenko // yantar92,
Org mode maintainer,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>