Created attachment 824288 [details]
server.log

Description of problem:
Download of offline translation zip fails with the log message: "Mapping id to msgctxt, but there is already a msgctxt for text flow id"

Version-Release number of selected component (if applicable):
Zanata version 3.2-SNAPSHOT (20131114-1743)

How reproducible:
Consistently

Steps to Reproduce:
1. Visit the documents page for a language in a project iteration (with project type = gettext) [Tested with authconfig 6.1.12-8 (Italian)]
2. Click Download All Files (zip), say Ye

Actual results:
In some cases, download progress bar never terminates.  Otherwise, it redirects to a generic error page.

Multiple server exceptions logged (see attachment for details):

java.util.concurrent.ExecutionException: java.lang.RuntimeException: Mapping id to msgctxt, but there is already a msgctxt for text flow id

java.lang.IllegalStateException: CDATA tags may not nest


Expected results:
Downloads a zip file containing zanata.xml and po files

Additional info:
Downloading the zip via the editor seems to be working.