In _service revision=HEAD, not a version tag. I suggest using v0.1.0, or a specific git commit if you require commits newer than an available tag. If you are able to use versionformat=@PARENT_TAG, that would make maintenance easier. See devel:languages:go/hugo for an example.

@andtecheu, @cyphar, @flavio_castelli, @jfkw, @jordimassaguerpla, @thipp: review reminder