TheInput:IsKeyDown sticking issue

ThePlayer:DoPeriodicTask(1, function()
    print("Control "..tostring(TheInput:IsControlPressed(CONTROL_MOVE_RIGHT)))
    print("Key "..tostring(TheInput:IsKeyDown(KEY_D)))
end)

When holding down a key, D in this case, and alt-tabbing from the game, both key and control will continue to hold as expected. Once returning to the game, the control will be released, whereas the key will remain stuck on.