plone/plone.app.querystring — pull request #28 by kroman0 (2014-08-08 11:42:07+00:00)
Title: Fixed build DateIndex query

see https://github.com/zopefoundation/Products.ZCatalog/blob/master/src/Products/PluginIndexes/DateIndex/DateIndex.py#L159

The problem is with Dexterity (plone.app.contenttypes) as query parameters are in unicode