Refactor AutoCompleteTagsTaxonomy to improve entity reference handling and...

Nicholas Steesrequested to merge
issue/ai-3560145:3560145-invalidargumentexception-in-autocompletetagstaxonomy into 1.2.x

Refactor AutoCompleteTagsTaxonomy to improve entity reference handling and sanitize TranslatableMarkup values

Closes #3560145

Merge request reports