Fixed #14198: Missing validation value resolution

[CameronHall]

Hello!

• Type: bug fix
• Link to issue: Invalid logic in Validator/File/FileAbstract #14198

In raising this pull request, I confirm the following:

• I have read and understood the Contributing Guidelines
• I have checked that another pull request for this purpose does not exist
• I wrote some tests for this PR
• I have updated the relevant CHANGELOG
• I have created a PR for the documentation about this change-

Small description of the change:

let value = validation->getValue(field);

Thanks

[codecov]

Codecov Report

Merging #14200 into 4.0.x will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##            4.0.x   #14200   +/-   ##
=======================================
  Coverage   66.31%   66.31%           
=======================================
  Files         475      475           
  Lines      111700   111700           
=======================================
  Hits        74078    74078           
  Misses      37622    37622

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[sergeyklay]

Thank you