Core/Auth: Prevent queueing more than one realmlist query at the same time

src/server/authserver/Server/AuthSession.cpp

@@ -785,6 +785,7 @@ bool AuthSession::HandleRealmList()
     stmt->setUInt32(0, _accountInfo.Id);
 
     _queryProcessor.AddQuery(LoginDatabase.AsyncQuery(stmt).WithPreparedCallback(std::bind(&AuthSession::RealmListCallback, this, std::placeholders::_1)));
+    _status = STATUS_WAITING_FOR_REALM_LIST;
     return true;
 }
 

src/server/authserver/Server/AuthSession.h

@@ -39,6 +39,7 @@ enum AuthStatus
     STATUS_LOGON_PROOF,
     STATUS_RECONNECT_PROOF,
     STATUS_AUTHED,
+    STATUS_WAITING_FOR_REALM_LIST,
     STATUS_CLOSED
 };