[Pkg-javascript-devel] strange behavior of gbp import-orig --uscan --pristine-tar

[Paolo Greppi]

I do this:

cd `mktemp -d`
git clone https://salsa.debian.org/js-team/node-yarnpkg
cd node-yarnpkg
git checkout -b upstream origin/upstream
git checkout upstream 
git pull
git checkout master
gbp import-orig --uscan --pristine-tar

at the end of the process, the master branch is screwed:
grep name package.json 
  "name": "v8-compile-cache",

the key part of the gbp import-orig is:
gbp:info: Launching uscan...
gbp:info: Using uscan downloaded tarball ../node-yarnpkg_1.19.0.orig-v8-compile-cache.tar.gz
What is the upstream version? [1.19.0] tar: 
gbp:info: ../node-yarnpkg_1.19.0.orig.tar.gz already exists, moving to ../node-yarnpkg_1.19.0.orig.tar.gz.1570089312
gbp:info: Importing '../node-yarnpkg_1.19.0.orig-v8-compile-cache.tar.gz' to branch 'upstream'...
gbp:info: Source package is node-yarnpkg
gbp:info: Upstream version is 1.19.0
gbp:info: Replacing upstream source on 'master'
gbp:info: Successfully imported version 1.19.0 of ../node-yarnpkg_1.19.0.orig-v8-compile-cache.tar.gz

Before I file a bug, has anyone an idea of what is going on ?

Paolo