Using unbound keyboard shortcut acts as if the corresponding letter was typed

[Rinzwind]

In Glamorous Toolkit v1.0.977, using an unbound keyboard shortcut acts as if the corresponding letter was typed. Pressing ⌘Y or ⌘U in a playground Pharo snippet for example acts if one typed ‘y’ or ‘u’ respectively. I would expect that to just be ignored instead, or some feedback to be given that the shortcut is not bound. I mostly bump into this when forgetting that ⌘I cannot be used to ‘inspect it’ as in Pharo:

https://github.com/user-attachments/assets/8353eb1e-81a2-440a-aedd-076cfa157c77

[hellerve]

Personally, I think both behaviors are reasonable. I just did some testing, and while Notes, Thunderbird, and Firefox on my Mac all ignored the shortcuts, Alacritty, the terminal emulator, exhibited the same behavior as GT. I definitely think the former behavior is more common, though.