When I create a tag for myself (e.g. Steve's tag). I can't delete the tag.
If there is a special character like the apostrophe (') in the name field of a tag. Retain is not able to delete that tag.
Workaround: Edit the tag, remove the special characters and save. Then you will be able to delete the tag.
Bug: RET-4906 - Cannot delete tags that contain apostrophes