Having trouble deleting a remote tag and branch because they both have the same name? No worries, there is a long form of delete you can use to unambiguously name each:
git push origin :refs/heads/BRANCHNAME
git push origin :refs/tags/TAGNAME
20190926/DuckDuckGo git dst refspec matches more than one
20190926/https://markhneedham.com/blog/2013/06/13/git-having-a-branchtag-with-the-same-name-error-dst-refspec-matches-more-than-one/