From b815ab506df4ffdfefe3e20572490cad9b552380 Mon Sep 17 00:00:00 2001
From: Elijah R <elijahr269@icloud.com>
Date: Wed, 17 Jul 2024 13:16:37 -0400
Subject: [PATCH] fix username duplication bug

---
 server/src/client.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/client.ts b/server/src/client.ts
index 930518e..7e94303 100644
--- a/server/src/client.ts
+++ b/server/src/client.ts
@@ -114,7 +114,7 @@ export class Client extends EventEmitter {
 		switch (msg.op) {
 			case MSAgentProtocolMessageType.Join: {
 				let joinMsg = msg as MSAgentJoinMessage;
-				if (!joinMsg.data || !joinMsg.data.username || !joinMsg.data.username) {
+				if (this.username !== null || !joinMsg.data || !joinMsg.data.username || !joinMsg.data.username) {
 					this.socket.close();
 					return;
 				}