bugfix: 生成 token 时对子流程进行去环操作

[hanshuaikang]

No description provided.

[codecov]

Codecov Report

Merging #211 (5c057b1) into master (e574447) will increase coverage by 0.01%.
Report is 1 commits behind head on master.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #211      +/-   ##
==========================================
+ Coverage   89.21%   89.22%   +0.01%     
==========================================
  Files          61       61              
  Lines        3486     3491       +5     
==========================================
+ Hits         3110     3115       +5     
  Misses        376      376              

Files	Coverage Δ
bamboo_engine/builder/builder.py	97.83% <100.00%> (+0.06%)	⬆️

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