gbp:error: Cannot find component tarball ../openslide_4.0.0+dfsg.orig-debian-tests-data.tar.xz

Dear all,

I am trying to package the new openslide 4.0 (new SONAME) into Debian.
Here is what I did:

% debcheckout --user malat --git-track '*' openslide
% cd openslide
% gbp import-orig --uscan
gbp:info: Launching uscan...
Newest version of openslide on remote site is 4.0.0, local version is 3.4.1
       (mangled local version is 3.4.1)
 => Newer package available from:
        => https://github.com/openslide/openslide/releases/download/v4.0.0/openslide-4.0.0.tar.xz
Successfully repacked ../openslide-4.0.0.tar.xz as
../openslide_4.0.0+dfsg.orig.tar.xz, deleting 1 files from it.
gbp:info: Using uscan downloaded tarball ../openslide_4.0.0+dfsg.orig.tar.xz
What is the upstream version? [4.0.0+dfsg]
gbp:error: Cannot find component tarball
../openslide_4.0.0+dfsg.orig-debian-tests-data.tar.xz

Could someone please help me here ? Thank you.

For reference, I used:
* https://med-team.pages.debian.net/policy/#updating-a-source-package-managed-with-git
* https://www.debian.org/doc/manuals/debmake-doc/ch11.en.html#gbp