How to make it work with a tag as the revision?

[pzaj2]

Hi, I use tags (git tags) to mark what's currently deployed to an environment and I would like to perform a comparison against this tag.

Unfortunately, I cannot get it working, I've already tried setting refBranch to:

• 'tags/'
• ''
• 'refs/tags/'
• 'refs/'

But neither worked, they all return

fatal: ambiguous argument '<refBranchInput>': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:

Any advice?