The code above does not provide the correct branch to the dockerfile, if running from master, i.e. a release. This results in an incorrect release.

If I run the following locally, everything works:

python-bindings/tools/releasing/packaging/docker$ docker build -t precice/python-bindings:latest --build-arg branch=v3.0.0.0 .

Note: --build-arg=v3.0.0.0 is needed and not --build-arg=master, because master contains 536d385

One can check for the correct version of the bindings being packaged by

docker run -ti precice/python-bindings:latest
python3 -c "import precice; print(precice.__version__)"

At the current state this breaks our automated packaging pipeline and requires manually releasing the docker container.