[Checkins] [zopefoundation/Zope] 91980b: work around `chameleon`s peculiar handling of the ...

[Dieter Maurer]

  Branch: refs/heads/issue_846
  Home:   https://github.com/zopefoundation/Zope
  Commit: 91980b6cbe51498f65b6069aa9720fb22de9fab1
      https://github.com/zopefoundation/Zope/commit/91980b6cbe51498f65b6069aa9720fb22de9fab1
  Author: dieter <dieter at handshake.de>
  Date:   2020-06-06 (Sat, 06 Jun 2020)

  Changed paths:
    M src/Products/PageTemplates/engine.py

  Log Message:
  -----------
  work around `chameleon`s peculiar handling of the TALES `default` value