[python2.7, Zope4] WSGI server?

Is the Plone 5.2 supposed to work under Python 2.7/Zope 4 with WSGI enabled?

I am using this configuration for Python 2.7 and 3.6:


bin/wsgi.py fg works as expected with Python 3.6 but it just terminates directly without further messages on Python 2.7.

I think this is an issue I fixed in plone.recipe.zope2instance master.