Introduced filter#disallow.
Got rid of filter function's caching wrapper which was unncessary.
Refactorised the form of processing function to open it for new options.
Extracted code doing actual filtering to a separate function.
Extracted code applying transformations to a separate function.
Updated functions order (asc name).
Added entire elements disallowing.
Removed old leftover - element name validator for a generic rule is not supported.
Minor simplification.
Filter out properties which are disallowed by ACF.
Cleaned up a leftovers - none of validator functions check values.
Introduced config.disallowedContent.
Filter#addFeature checks the feature if any disallowed content rules are defined.
Disallow should not be blocked by custom configuration.
Changelog entry.
Merge branch 't/10276' into major