"The Governor" gaskets

I got a 5 gal ball-lock keg for Christmas, and it came with “The Governor” regulator. I’m just a little confused about what to do with the plastic gasket that is zip-tied to the regulator. Is this just an “extra”, or do I need it in addition to the one that is already inside the face of the regulator? The instructions made no mention of it, so I’m just assuming it’s an extra.

Sounds like an extra to me.
IIRC, mine also came with two gaskets