Sorry!
I misunderstood how EditorFileDialog works. I thought it used confirmation and cancellation.

This is indeed a perfectly correct fix! The only minor issue is that I previously misunderstood and used p_is_confirmed, which could potentially cause code robustness problems. It's best to rename it to p_is_canceled and reverse the corresponding logic to avoid misleading those reading the code later.

Again, I apologize for my carelessness and mistake!

https://github.com/godotengine/godot/blob/master/editor%2Fproject_manager%2Fproject_dialog.cpp#L834-L835

Thanks!