don't indicate interest in peers when in upload only mode

If the torrent is paused we don't want to mark peers as interesting
even if the torrent has not finished downloading.

src/peer_connection.cpp

@@ -1929,7 +1929,7 @@ namespace libtorrent
 		// calling disconnect_if_redundant, otherwise we may disconnect even if
 		// we are interested
 		if (!t->has_piece_passed(index)
-			&& !t->is_seed()
+			&& !t->is_upload_only()
 			&& !is_interesting()
 			&& (!t->has_picker() || t->picker().piece_priority(index) != 0))
 			t->peer_is_interesting(*this);