Paste not working when there is a physical key pressed

[QiangF]

I bind delete-frame to hyper-space, because c-x 5 0 is too many keys to press. Sometimes I did not release hyper key quick enough, and the content is not pasted. I am looking for a way to let xdotool ignore the maybe pressed hyper key.

[QiangF]

The issue can be avoided by binding delete-frame to shift-space. But that binding is used in many applications.