[CLIENT] Joining a different draft pick lobby won't remove previously picked roles on client

Basically, having been in a draft pick lobby (normal or ranked) and having roles already picked, when one gets invited into a new draft pick lobby, they keep their selected roles on the client-side.

The others will not see their roles, as they actually don't have anything picked. To actually pick roles, one needs to completely swap their roles and then swap back. Kind if annoying and confusing. Please fix.

How to replicate:

1. Make a draft pick game, select your roles
2. Have a friend invite you to a new draft pick game
3. Join it
4. Tada!