Or... The Mog Station just pulled the beta 2 entitlement in key form that we already had.

Or beta 2 just auto applied the full game entitlement as to log in you need the account activated on Mog Station anyway.

Really interested on how they got the Mog Station and the PS4 upgrades to play nice on a technical level. Regardless, isn't a bug. If you have Beta 2 and activated with Mog Station, just update the client. No need to re-download.