fix: 维护模式重复进入失败与按钮灰死 + Broker 并发验证用例

wenxiangchao

3 天以前 b544d5cccd76735e034c8055918a50927b437474

 Plugin.BurnIn/Scanner.xaml.cs

@@ -390,7 +390,7 @@
            try
            {
                targetCellInfo = null;
                serialPort.Dispose();
                serialPort?.Dispose();
                serialPort = null;
            }
            catch (Exception ex)