Add FIXME in _handle_single_key

qutebrowser/commands/keys.py

@@ -103,6 +103,8 @@ class KeyParser(QObject):
 
         e -- the KeyPressEvent from Qt
         """
+        # FIXME maybe we can do this in an easier way by using QKeySeqyence
+        # which has a matches method.
         logging.debug('Got key: {} / text: "{}"'.format(e.key(), e.text()))
         txt = e.text().strip()
         if not txt: