CC turned on for rewind

[ElihuRozen]

I was playing on my Roku and saw that the setting for Closed Captioning had three options: Off, On always and On rewind.  The third option seems to turn on CC when you rewind or skip back, like if you couldn't understand what someone said and you go back to listen again.  When it catches up to where you hit rewind, it turns them back off.