fix(Core/Groups): fix group enchanting level not resetting properly (#5501)

src/server/game/Server/WorldSession.cpp

@@ -450,6 +450,10 @@ bool WorldSession::HandleSocketClosed()
     return false;
 }
 
+bool WorldSession::IsSocketClosed() const {
+    return !m_Socket || m_Socket->IsClosed();
+}
+
 void WorldSession::HandleTeleportTimeout(bool updateInSessions)
 {
     // pussywizard: handle teleport ack timeout

src/server/game/Server/WorldSession.h

@@ -926,6 +926,7 @@ public:                                                 // opcodes handlers
     void SetKicked(bool val) { _kicked = val; }
     void SetShouldSetOfflineInDB(bool val) { _shouldSetOfflineInDB = val; }
     bool GetShouldSetOfflineInDB() const { return _shouldSetOfflineInDB; }
+    bool IsSocketClosed() const;
 
     /***
     CALLBACKS