If your master branch
does not contain a debian/ dir it can not parse the metadata. I'm
not comfortable with the tag based packaging and whether there is
some safe way to fetch the debian/ dir from a raw Git repository.
Assuming more and more people, like myself, adopt DEP-14 for their packaging repository layout, then it would make sense to update this code so that it fetches the metadata not only from
the master branch but from a potential debian/sid or debian/experimental branch ? I don't know enough about Git scripting to comment on whether this could be easily done.
This situation would happen regardless of whether pristine-tar is used and DEP-14 covers both pristine-tar and upstream-tag based workflows. I foresee the same situation happening for at least two other packages I am currently working on.