What is the use case for sharing a term between multiple taxonomies?
The helpful folks on WordPress IRC pointed me to this article, which answered my question: https://make.wordpress.org/core/2015/02/16/taxonomy-term-splitting-in-4-2-a-developer-guide/ In WordPress 4.2, shared taxonomy terms – those items in the wp_terms table that are shared between multiple taxonomies – will be split into separate terms when one of the shared terms is updated. This change (31418) fixes one … Read more