I recently tried to edit https://chemistry.stackexchange.com/questions/33521/an-unkown-substance-present-in-urine-with-the-empirical-formula-ch4n2o to remove the incorrect tag (it has been done now).
While doing just a tag-edit (i.e. no changes made in the body), I get a notification saying edits must be 6 characters. But I didn't edit the body at all. I was trying to make just a tag-edit. Is this a glitch?
I flagged the question for moderator help and got this reply:
Even if it's just a tag edit, to suggest an edit requires the minimum character change.
I still don't understand this. Can someone help me?