There is now

    wendelin.core       and
    wendelin.core-dev

parts.

wendelin.core just installs released egg from pypi, and
wendelin.core-dev installs it from latest git version.

A reminder how to use wendelin.core-dev instead of wendelin.core:

if your buildout.cfg

    [buildout]
        # directly or indirectly
        extends = ..../wendelin.core/buildout.cfg

then at tails, do

    [buildout]
        parts -= wendelin.core
        parts += wendelin.core-dev

This way wendelin.core will be fetched from git repository.