[MERGE] Use a list not a tuple for chunks returned from FullTextContentFactory objects, because otherwise code tries to assign to tuples.

[Bundle Buggy]

Bundle Buggy has detected this merge request.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C1233625383.24000.3.camel%40lifeless-64%3E
Project: Bazaar