fix: full text search with limit may return an incorrect results

[BubbleCal]

fix #3264
this happens when limit is set and there are some docs the their estimated score is greater than threshold

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 98.55072% with 1 line in your changes missing coverage. Please review.

Project coverage is 79.07%. Comparing base (022135b) to head (b7cce72).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
rust/lance-index/src/scalar/inverted/wand.rs	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3284      +/-   ##
==========================================
+ Coverage   79.00%   79.07%   +0.06%     
==========================================
  Files         246      246              
  Lines       86900    87539     +639     
  Branches    86900    87539     +639     
==========================================
+ Hits        68655    69221     +566     
- Misses      15377    15454      +77     
+ Partials     2868     2864       -4     

Flag	Coverage Δ
unittests	79.07% <98.55%> (+0.06%)	⬆️

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