jenkins-build-all just sets `build_server_always = True`, these tests need
a whole keystore setup. So just delete the existing config, and let
`fdroid init` do the rest.
# this is set up and managed by jenkins-build-all
cd $WORKSPACE/fdroiddata
-test -e config.py || ../fdroid init --verbose
-test -e keystore.jks || ../fdroid update --create-key
+rm -f config.py
+../fdroid init --verbose
+../fdroid update
export GNUPGHOME=$WORKSPACE/tests/gnupghome
echo "build_server_always = True" > config.py