fix: multiple label only shows the merged node

[zombieJ]

No description provided.

[vercel]

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[codecov]

Codecov Report

Merging #233 (7392444) into master (9690875) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #233   +/-   ##
=======================================
  Coverage   99.78%   99.78%           
=======================================
  Files          15       15           
  Lines         461      463    +2     
  Branches      114      117    +3     
=======================================
+ Hits          460      462    +2     
  Misses          1        1           

Impacted Files	Coverage Δ
src/Cascader.tsx	100.00% <ø> (ø)
src/hooks/useDisplayValues.ts	100.00% <100.00%> (ø)

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