[orca-list] Toggling contracted braille table with braille display: doesn't work right?

[Hammer Attila <hammera pickup hu>]

Hy,

I try testing toggling contracted braille table for braille display on/off.
I checked enable contracted braille check box, and selected the U.S. 
English Grade 1 translation table.
My Alva Satellite 570 Pro braille display two key press simulate this 
command (the braille device I need press the Help button and Info button 
with one merged key press).
Because the contracted braille is toggled on, first switch is happening 
right (Orca switched the hungarian Brltty table), but the second key 
press does'nt take effect, contracted braille is not enabled again, and 
not selected the U.S. English Grade 1 translation table.
When for example I opening Orca preferences, nothing change but close 
the Preferences dialog, contracted braille is enabled again.

Anybody possible reproduce this issue?
I tested this problem with Ubuntu Lucid, Orca 3.1.2pre version.

Attila