Rebinding unlisted binds (rewind)
Apparently Z is bound to rewind and it's not listed in the options under Keyboard Shortcuts. I was unable to find which file to edit or how I could unbind or rebind the key via search. If anyone has any insight into how I could unbind the shortcut keys which are unlisted in the options or if it's just an unsupported feature yet that would be great.
Not sure, but this sounds like a bug. Make sure to report it!