Bug in IMP Debian package

[Tomàs Núñez Lirola <tomas@asertel.es>]

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Hi
I think I've found a bug in IMP Debian package.
When I saved "Full Name" on preferences, IMP added a "<" to the end of the 
full name. Then, when I sent a message, the "From:" appeared something like 
that:
myname@my.host.com, UNEXPECTED_DATA_AFTER_ADDRESS@.SYNTAX-ERROR

I looked at the database and I found this "<" in the "Full Name" field. I 
looked where this string was added to the database and I found this function
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if (isset($fullname) && ($fullname != $old_fullname)) {
    // filter for existing quotes
    if (substr($fullname, 0, 1) == '"' && substr($fullname, -1) == '"') {
             $fullname = substr($fullname, 1, -1);
     }
     // filter for illegal characters
     $quoted = imap_rfc822_write_address('', '', $fullname);
     $quoted = substr($quoted, 0, strlen($quoted)-4);
     if (!(imp_set_fullname(addslashes($quoted), $imp->user, $imp->server))) {
                                $errormsg .= $lang->fullname_error;
                                $updated = false;
     }
}
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I don't know a lot about PHP, so I don't fully understand this function, but I 
changed the 8th line
     $quoted = substr($quoted, 0, strlen($quoted)-4);
changing the -4 for a -5
     $quoted = substr($quoted, 0, strlen($quoted)-5);

and now it works perfectly (I think).

My questions are: 
Anyone faced this problem before? (In other words, is this a real bug or it's 
only on my IMP?)
Should I inform IMP Debian package mantainer? Or IMP coders?
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