Site has optional files if any of the peers has hashfield

plugins/PeerDb/PeerDbPlugin.py

@@ -50,6 +50,8 @@ class ContentDbPlugin(object):
             if row["address"].endswith(".onion"):
                 peer.reputation = peer.reputation / 2  # Onion peers less likely working
             num += 1
+        if num_hashfield:
+            site.content_manager.has_optional_files = True
         site.log.debug("%s peers (%s with hashfield) loaded in %.3fs" % (num, num_hashfield, time.time() - s))
 
     def iteratePeers(self, site):