Fix the issue in redact when it's combined with recursive descent

[mertyildiran]

Closes #48

[codecov]

Codecov Report

Merging #49 (e824684) into main (c37adfc) will increase coverage by 0.07%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main      #49      +/-   ##
==========================================
+ Coverage   70.20%   70.27%   +0.07%     
==========================================
  Files           8        8              
  Lines        1782     1793      +11     
==========================================
+ Hits         1251     1260       +9     
- Misses        402      403       +1     
- Partials      129      130       +1     

Impacted Files	Coverage Δ
server/lib/eval.go	80.99% <83.33%> (+0.01%)	⬆️

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