[ISSUE #945]init crCh after topic with namespace to avoid consumption blocked.

[NeonToo]

…se consumption blocked; opt on log

What is the purpose of the change

close #945

• the consumption blocked unexpectly since the crCh map key is without topic namespace
• more log info for some cases

Brief changelog

XX

Verifying this change

XXXX

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[0daypwn]

#933 #934
It should be the same problem.Retry topic also needs to be considered.

[codecov-commenter]

Codecov Report

Merging #944 (003b83f) into master (8011561) will increase coverage by 0.04%.
The diff coverage is 46.66%.

@@            Coverage Diff             @@
##           master     #944      +/-   ##
==========================================
+ Coverage   23.61%   23.65%   +0.04%     
==========================================
  Files          52       52              
  Lines        7170     7179       +9     
==========================================
+ Hits         1693     1698       +5     
- Misses       5247     5251       +4     
  Partials      230      230              

Impacted Files	Coverage Δ
consumer/consumer.go	17.61% <0.00%> (ø)
internal/client.go	0.17% <0.00%> (-0.01%)	⬇️
internal/constants.go	0.00% <0.00%> (ø)
consumer/push_consumer.go	13.29% <100.00%> (+0.48%)	⬆️

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