You can only ever view the current state of a player's roster, even through the GA user interface, so the only time you can view the locked-in state is at the end of the initial signup phase when brackets are selected. The more time elapses from that point the more the current state diverges from the locked-in state as the players make changes.
Depending how you access an individual character's detail screen within the GA you could be looking at either its current state or its locked-in state - https://forums.galaxy-of-heroes.starwars.ea.com/discussion/200268/viewing-roster-details-in-locked-down-ga-is-broken
