dataset_select_paginated: do not clone on each paginated query

[skshetry]

Let's see if the test passes.

Context: #521 (comment).

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[codecov]

Codecov Report

Attention: Patch coverage is 93.75000% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.65%. Comparing base (853a58c) to head (2af2d9c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/datachain/data_storage/warehouse.py	93.75%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #629   +/-   ##
=======================================
  Coverage   87.65%   87.65%           
=======================================
  Files         106      106           
  Lines       10292    10292           
  Branches     1386     1386           
=======================================
  Hits         9021     9021           
  Misses        929      929           
  Partials      342      342           

Flag	Coverage Δ
datachain	87.59% <93.75%> (ø)

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[dreadatour]

Great finding 🔥 Thank you! 👍