Recoll doesn't appear to be indexing open office graphics files
I have a number of odg files created by both open office and libreoffice, which don't appear to be being indexed. No .odg file appears in the results from any query, but if I create a pdf from my odg files (in the same directory), the queries find the content, so it's not the query itself.
My environment is linux mint 14 (based on ubuntu 12.10), on a cinnamon desktop (not that I think that's relevant) with Recoll 1.17.3 + Xapian 1.2.12 (from the ubuntu upstream repository).
Recoll reports that I have the appropriate helper for odg (or at least I assume so, from this): application/vnd.sun.xml.draw and the absence of any helpers in the missing list which might be relevant, however, I note that it's actually reported as application/vnd.oasis.opendocument.graphics by the file properties utility. Maybe that's a clue?