.....clear one of two duplicate tags?
I have a large set of resources, about 700, tagged with two different tags. I was going through resources and rules, tagging resources with a second tag, to check and see if I missed any resources with the first tag. So now all 700 resources have tag A and B, successfully verifying my work but now I have a redundant tag that I don't want any more. I want to clear tag B.
I know I can do a search on mytag:A or mytag:B, select them all, and hit the button "Clear tags". My fear is this gets rid of both tags (it should), but then my search window will refresh, losing my 700 resources that took hours to build that I will not be able to easily retrieve because now both tags are gone.
So how do I get rid of one tag but not the other?
Thanks!