BindActionAtPriority firing Enum.KeyCode.Unknown

Bug Reports Engine Bugs
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#1

The Unknown key code is able to fire actions bound to Space key code. Paste the following code example in a local script in a baseplate, play solo and press Space- it will print correctly. Then press escape to open Roblox menu- this will print Enum.KeyCode.Unknown.

game.ContextActionService:BindActionAtPriority("Wheelie", function(actionName, state, input)
	print(input.KeyCode)
	if input.KeyCode == Enum.KeyCode.Space then
		if state == Enum.UserInputState.Begin then
			return Enum.ContextActionResult.Sink
		elseif state == Enum.UserInputState.End then
			return Enum.ContextActionResult.Sink
		end

		return Enum.ContextActionResult.Pass
	end
end,false, 2001, Enum.KeyCode.Space)