I would agree on merging 4k-sectors into advanced-format and also synonymizing them.
updating post history, 20 rows affected
updating posts, 14 rows affected
updating PostTags associations, 13 rows affected
removing/renaming old tag, 0 rows affected
updating count for master tag, 1 rows affected
tag remapping of [advanced-format] and [4k-sectors] complete!
remapping 0 synonyms
0 favorite and ignored tags remapped!
Tag Synonym 4k-sectors -> advanced-format was approved!
Broadcasting tag-engine reload