--- a/eric7/Plugins/VcsPlugins/vcsMercurial/HgClient.py	Sun May 16 20:07:24 2021 +0200
+++ b/eric7/Plugins/VcsPlugins/vcsMercurial/HgClient.py	Mon May 17 19:58:15 2021 +0200
@@ -264,7 +264,7 @@
             if self.__server is None:
                 return -1
             
-            if self.__server is None or self.__server.bytesAvailable() == 0:
+            if self.__server.bytesAvailable() == 0:
                 QThread.msleep(50)
                 continue
             channel, data = self.__readChannel()