Add Flag to indicate if cpos lists are saved as ranges or lists.

app/corpora/cqi/models/subcorpora.py

@@ -82,7 +82,8 @@ class Subcorpus:
                 match = {'lc': lc, 'c': c, 'rc': rc}
             matches.append(match)
         lookups = self.corpus.lookups_by_cpos(cpos_list)
-        return {'matches': matches, **lookups}
+        return {'cpos_ranges': (not expand_lists), 'matches': matches,
+                **lookups}
 
     def fdist_1(self, cutoff, field, attribute):
         return self.client.api.cqp_fdist_1(self._name, cutoff,