fix: first level number option should show label correct

[zombieJ]

fix ant-design/ant-design#32556

[vercel]

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[codecov]

Codecov Report

Merging #203 (e53dd22) into master (b31efd3) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #203   +/-   ##
=======================================
  Coverage   99.71%   99.71%           
=======================================
  Files           9        9           
  Lines         353      355    +2     
  Branches       96       95    -1     
=======================================
+ Hits          352      354    +2     
  Misses          1        1           

Impacted Files	Coverage Δ
src/util.ts	100.00% <100.00%> (ø)

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