[Info-vax] bizarre SEARCH bug (7.3-2 Alpha)

[Phillip Helbig undress to reply]

I realize that this is an old version of VMS; I just want to understand 
the problem.

When checking a LaTeX document for unmatched (, ), [, and ] (unmatched { 
or } will cause a LaTeX error), I noticed the following:

$ creat x.x
\cite[see \eg{}~][for \tIas{} data]{AConleyetal11a}
$ sea x.x [,]/match=and
\cite[see \eg{}~][for \tIas{} data]{AConleyetal11a}

What is strange is that the second "]" is not highlighted.  The text 
contains many examples of two of each in one line, and the others look 
OK, whether or not there is text between the matching pairs or not.  
Here is a minimal example:

$ creat y.y
[][] Exit
$ sea y.y [,]/match=and
[][]

Again, the second "]" is not highlighted.

On 8.4, there are no problems.

Can anyone else reproduce this?

Whatever could cause it?