[Dubbo-etcd3-bug]The client loses the listener when the network is reconnected.

[zonghaishang]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.7.1
• Operating System version: mac
• Java version: 1.8

Steps to reproduce this issue

1. xxx
2. xxx
3. xxx

Pls. provide [GitHub address] to reproduce this issue.

Expected Result

What do you expected from the above steps？

Actual Result

What actually happens?

If there is an exception, please attach the exception trace:

Just put your stack trace here!

[cvictory]

@zonghaishang How about this issue? If you don't have time to fix it, I will modify the milestone to 2.7.3.

[zonghaishang]

fixed: zonghaishang@7bacc82

What is the release deadline for the 2.7.2 release?

[ralf0131]

I am starting to review this. @cvictory

[ralf0131]

This issue has been fixed from 2.7.2 onwards.