Fix search for xapian 1.2 issue2550676.

Author: Bernhard Reiter

CHANGES.txt

@@ -29,6 +29,8 @@ Fixed:
   doesn't have access to a property but can deduce the content by
   crafting a clever search, group or sort query.
   see doc/upgrading.txt for how to fix your trackers! (Ralf Schlatterbeck).
+- Fix search for xapian 1.2 issue2550676 
+  (Bernhard Reiter; Thanks to Olly Betts for providing the patch.)
 - Some minor typos fixed in doc/customizing.txt (Thanks Ralf Hemmecke).
 - XML-RPC documentation now linked from the docs/index (Bernhard Reiter).
 - Fix setting of sys.path when importing schema.py, fixes issue2550675,

roundup/backends/indexer_xapian.py

@@ -122,6 +122,6 @@ def find(self, wordlist):
         enquire.set_query(query)
         matches = enquire.get_mset(0, 10)
 
-        return [tuple(m[xapian.MSET_DOCUMENT].get_data().split(':'))
+        return [tuple(m.document.get_data().split(':'))
             for m in matches]