[R13B02] Error message and duplicate menu item after debugger:start() on Mac OS X 10.6.1

[Bruno Rijsman]

The following bug was observed running Erlang R13B02 on Mac OS X 10.6.1

Start an erl shell:
erl

Start the debugger:
debugger:start().

The debugger window opens.

At this point in time the menu items for the debugger window are: beam.smp,
File, Edit, Module, Process, Break, Options, Windows, Help, Window.

Click on the Help menu item. A drop down menu with the options Search and
Debugger appears.

In the Erl shell the following error message appears:

2009-12-15 07:18:10.894 beam.smp[2675:3903] Calling -[NSMenuItemViewer
_getMenuItemViewerHIViewClassRegisteringIfNecessary] off the main thread.
This is not supported and will likely crash.

The menu changes and now includes the following items: beam.smp, File, Edit,
Module, Process, Break, Options, Windows, Help, Window, Help.

Note that the Help item is present twice. The first Help item has a drop
down menu with a single item Debugger. The second Help item has a drop down
menu with a single item Search.