Is there a way to purge unused tags from the DB?
If I miss-tagged a question with "perview" instead of "preview". I go back and fix the tag.
However, I now have a tag "perview" in the system.
Is there a way to purge those unused tags? It would be ok if I had to explicitly do it.
something like: "python manage.py purge_tag perview"
If the in tag was used, I should get an error:
"Error: Tag 'perview' is in use (in 2 questions: [148, 172])"
Showing the # of questions and the question number would be a nice bonus.