Post tags using cyrillic chars multiply in tables wp_term* when updating posts
|Reported by:||StefanMz||Owned by:|
Having the post tag български (with slug bulgarski) and saving changes on a post using this tag, the tag is not recognized as already existent (not increasing "count" in wp_term_taxonomy), but recreated in tables wp_terms, wp_term_taxonomy, and wp_term_relationships again and again.
My observation is, that the previous entry in wp_term_taxonomy linking the existing term with the last post version is replaced by a new entry linking the redundant new term and the post.
The same behavior occurs when using HTML-entities instead of the cyrillic characters български.
MySQL database, db-connection and tables use utf8_general_ci.