Since this bug seems to affects almost all Zope versions, I consider fixing this bug on the 2.8 branch and releasing new versions for Zope 2.9 - 2.12 this week. I don't consider working on a hotfix.
Since this bug seems to affects almost all Zope versions, I consider fixing this bug on the 2.8 branch and releasing new versions for Zope 2.9 - 2.12 this week. I don't consider working on a hotfix.