Bug#1051342: Issue with the genx software

[PICCA Frederic-Emmanuel]

Hello, I am preparing the packaging of genx 3.6.22.

When I try to quit the application I have this error message

CRITICAL: uncought python error
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/genx/gui/main_window.py", line 1418, in 
eh_mb_quit
    if event.CanVeto() and not self.model_control.saved:
       ^^^^^^^^^^^^^
AttributeError: 'CommandEvent' object has no attribute 'CanVeto'
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/genx/gui/main_window.py", line 1418, in 
eh_mb_quit
    if event.CanVeto() and not self.model_control.saved:
       ^^^^^^^^^^^^^

So I would like your help in order to solve this issue.

thanks for considering.

Frédéric