This has been fixed a long time ago in zope.app.publication 3.5.0, you might wanna upgrade. zope.app.publication 3.4 is not going to support ZODB 3.9.
This has been fixed a long time ago in zope.app. publication 3.5.0, you might wanna upgrade. zope.app. publication 3.4 is not going to support ZODB 3.9.