Fix issue causing attribute not loading when using getList

[teganbold]

Description (*)

As specified in issue #17759, CustomerRepository::getList() is unexpectedly returning NULL, when CustomerRepository::get() is correctly returning the value. Specifying the attribute as billing_company instead of company removes the conflict.

Fixed Issues (if relevant)

1. M2.2.5 : CustomerRepository::getList() does not load custom attribute if the name is "company" #17759: M2.2.5 : CustomerRepository::getList() does not load custom attribute if the name is "company"

Manual testing scenarios (*)

1. Create/Install two custom varchar customer attributes, one with the code company.
2. Log the data when loading with getbyId():
   $customerById = $customerRepository->getbyId(x);
3. Log the data when loading with getList():
   $customerByList = $customerRepository->getList($searchCriteria->addFilter('x, y')->create());

Previously, under custom attributes, both attributes were loading correctly for getbyId(), but company would pull NULL when using getList()

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-cicd2]

All committers have signed the CLA.

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Hi @MiliTree. Thank you for your contribution.
We will aim to release these changes as part of 2.3.1.
Please check the release notes for final confirmation.