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02f9f1ea95
While the `wp_get_loading_optimization_attributes()` function was only recently introduced in 6.3, its code was mostly ported over from the now deprecated `wp_get_loading_attr_default()` function introduced in 5.5. That function started out in a simple way, but over time was expanded with more and more conditionals on when to avoid lazy-loading, which ended up making the logic extremely complex and hard to follow. This changeset refactors the logic to simplify it, in a way that allows to follow it more sequentially, and without making any functional changes, ensuring that the extensive existing unit test coverage still passes. This will facilitate future enhancements to the function to be less error-prone and make it more accessible to new contributors. Props flixos90, joemcgill. Fixes #58891. git-svn-id: https://develop.svn.wordpress.org/trunk@56347 602fd350-edb4-49c9-b593-d223f7449a82