PlayerPropertiesChanged event fires before Player Properties are applied

• When a player updates their properties (In the test case setting an "inviting" key with a join code), all other players in the session receive the PlayerPropertiesChanged event correctly but reading the updated properties inside the event handler returns empty or stale data. The updated values only become visible on the next read (one frame later).

I looked at the stack trace and saw that in LobbyCallbacks between UpdateLobbyCache and InvokeLobbyChange the data is lost. Screenshots provided below
Steps to reproduce:

1. 1. Create a session with 2+ players using MultiplayerService.Instance.CreateSessionAsync / JoinSessionAsync.
   2.  Subscribe all players to session.PlayerPropertiesChanged.                                                                          
   3.  Have one player update their properties: e.g. await session.SetPlayerPropertyAsync("inviting", new SessionProperty("join-code-value",   VisibilityPropertyOptions.Member)).                                                                                                      
   4.  In the PlayerPropertiesChanged handler on a non-updating player, immediately read session.Players[<updatingPlayerId>].Properties["inviting"].                                    

Actual results: session.Players[id].Properties does not contain the new key/value when read directly inside the handler. The property becomes visible only  
  if read on the next frame (or after a delay), because changes have not been executed yet when the event fires.

Expected results:   The updated property value ("join-code-value") is accessible inside the PlayerPropertiesChanged handler the moment it fires. 

Reproducible with versions:   com.unity.services.multiplayer 2.0.0

Not reproducible with versions: 

Can’t test with versions: 

Tested on (OS): 

Notes:

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