decrease join code length. Fixes #623 (#625)
decrease join code length. Fixes #623 (#625)


CSC-IT-Center-for-Science/pouta-blueprints,CSC-IT-Center-for-Science/pouta-blueprints,CSC-IT-Center-for-Science/pouta-blueprints,CSC-IT-Center-for-Science/pouta-blueprints