test: Singbox内核删除用户时尝试关闭该用户所有TCP会话

limiter/limiter.go

@@ -164,6 +164,8 @@ func (l *Limiter) CheckLimit(taguuid string, ip string, isTcp bool, noSSUDP bool
 		} else {
 			userLimit = determineSpeedLimit(u.SpeedLimit, u.DynamicSpeedLimit)
 		}
+	} else {
+		return nil, true
 	}
 	if noSSUDP {
 		// Store online user for device limit