Since Doctrine takeover, we are merging the “signed” upstream tags as
upstream, instead of using the tarball that doesn’t ship tests.

# Example to import upstream 1.0.2 version
version=1.2.17+dct1.0.2
# We still use the upstream branch to drop the .gitattributes file from upstream
gbp import-ref --upstream-tag=${version##1.2.17+dct} -u$version --debian-branch=upstream
gbp import-ref --upstream-tree=BRANCH -u$version
