Changes
/* Session picking protocol for current occupant of the current session */
If <math>m</math> users are joining that session concurrently, there are <math>S_1,...,S_m</math> sessions in-limbo which are receiving shares and authentication messages.
'''If the <math>U_l</math> currently in room signal signals to leave the room a session <math>S_l</math> is created. Each session <math>S_j</math> results in the creation of session <math>S_{j'}</math> with user <math>U_l</math> omitted. <math>S_j</math> is marked as dead.'''
The user <math>U_i</math> sends the shares and authentication token necessary for each session. The first session which receives all confirmations will become the main session, and the joiner user of that session becomes the current session. '''All other <math>S_j</math> results in new session <math>S_{j''}</math> to which <math>U_{joiner}</math> is added. previous "current" session becomes in-limbo.'''
