fix: Empty any_horizontal should be false, not true

[orlp]

No description provided.

[stinodego]

Oof, good fix! Care to add a test case?

[orlp]

Oof, good fix! Care to add a test case?

Done. I just came across the bug in Rust code and wanted to fix it to be sure even though I thought we couldn't reach this at first since pl.any_horizontal doesn't allow empty input. But it turns out we can actually reach it with empty selectors :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.81%. Comparing base (04d0978) to head (539c97d).
Report is 43 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #18545      +/-   ##
==========================================
- Coverage   79.87%   79.81%   -0.06%     
==========================================
  Files        1501     1503       +2     
  Lines      201823   201956     +133     
  Branches     2868     2868              
==========================================
- Hits       161200   161191       -9     
- Misses      40077    40219     +142     
  Partials      546      546              

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