fix(flop-validation): reset conflicting pagination fields if replace_invalid_params is true

[shunjilin]

There is an issue where if conflicting pagination types are set, and if at least one of them is malformed (e.g. not an integer), the Flop.validate function returns an {error, changeset} tuple even if replace_invalid_params is set to true.

This is an attempt to fix by ensuring that all conflicting pagination fields are reset if there is a conflict and replace_invalid_params is set to true.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.45%. Comparing base (1ad0d9f) to head (3526e1c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #654      +/-   ##
==========================================
+ Coverage   84.41%   84.45%   +0.04%     
==========================================
  Files          15       15              
  Lines        1033     1036       +3     
==========================================
+ Hits          872      875       +3     
  Misses        161      161              

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