fix: keep optional params coming from a parent record

[chuyuandu]

resolve TODO: only keep optional params coming from a parent record

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[codecov-commenter]

Codecov Report

Merging #2031 (0d414e1) into main (b6d12ed) will increase coverage by 0.02%. Report is 1 commits behind head on main. The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##             main    #2031      +/-   ##
==========================================
+ Coverage   90.77%   90.79%   +0.02%     
==========================================
  Files          24       24              
  Lines        1116     1119       +3     
  Branches      348      349       +1     
==========================================
+ Hits         1013     1016       +3     
  Misses         63       63              
  Partials       40       40              

Files	Coverage Δ
packages/router/src/matcher/index.ts	98.78% <100.00%> (+0.02%)	:arrow_up:

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[chuyuandu]

@posva hey, i have improved the code and add unit tests

[posva]

thanks! I will check later on this year