Fix: ut, replace, hash problem

[LaurenceLiZhixin]

What this PR does:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

Merging #1376 (77f9d6e) into 1.5 (467c867) will decrease coverage by 2.52%.
The diff coverage is 64.84%.

❗ Current head 77f9d6e differs from pull request most recent head d6ef9c0. Consider uploading reports for the commit d6ef9c0 to get more accurate results

@@            Coverage Diff             @@
##              1.5    #1376      +/-   ##
==========================================
- Coverage   58.07%   55.55%   -2.53%     
==========================================
  Files         275      276       +1     
  Lines       13381    15943    +2562     
==========================================
+ Hits         7771     8857    +1086     
- Misses       4650     6150    +1500     
+ Partials      960      936      -24     

Impacted Files	Coverage Δ
config/config_loader.go	43.40% <0.00%> (+4.56%)	⬆️
config/provider_config.go	62.06% <0.00%> (+7.52%)	⬆️
config/reference_config.go	80.00% <0.00%> (-1.67%)	⬇️
...gistry/event/protocol_ports_metadata_customizer.go	65.78% <ø> (+6.41%)	⬆️
registry/zookeeper/listener.go	26.58% <0.00%> (-42.65%)	⬇️
remoting/etcdv3/client.go	55.69% <0.00%> (+2.69%)	⬆️
remoting/zookeeper/listener.go	0.00% <0.00%> (-41.29%)	⬇️
config/config_center_config.go	66.21% <33.33%> (+2.03%)	⬆️
registry/directory/directory.go	77.89% <58.33%> (+2.14%)	⬆️
protocol/dubbo/dubbo_invoker.go	70.29% <60.00%> (+0.97%)	⬆️
... and 294 more

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[LaurenceLiZhixin]

Refer to 3.0 #1267
Fix: #1349