A bug report with a Pd patch that always triggers the bug is the best
way to insure that this gets fixed. Most of the work in fixing the bug
like that is finding a way to reliably trigger it so you can see what's
causing the problem.
any occurence of openpanel triggers the bug. if it is to open a text or
sound file doesn't matter. the condition is only that it has to be at
least the 2nd time that openpanel is used, and that the user isn't quick
enough selecting the file, and the system pop-up commentary about the
highlighted file appears (how big, full name, etc).