It seems that this is due to setuptools-scm which provide the list of the data during the dpkg-buildpackage.
taken from the doc of setuptools-scm --- Additionally setuptools-scm provides setuptools with a list of files that are managed by the SCM (i.e. it automatically adds all the SCM-managed files to the sdist). Unwanted files must be excluded via MANIFEST.in or configuring Git archive. --- And indded via sbuild there is no .git directory so setuptools-scm do not provide the list. Do we know how to deal with this at the pacakging level. the upstream is using the code from the git repository, so it is not affected by this issue... Fred
