From 567fe0ec1006400f3b804f02a89d0caef8a8200e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Klinkovsk=C3=BD?= <j.l.k@gmx.com>
Date: Thu, 11 Aug 2016 17:48:43 +0200
Subject: [PATCH] keyinput: don't emit keystring_updated twice when clearing

---
 qutebrowser/keyinput/basekeyparser.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/qutebrowser/keyinput/basekeyparser.py b/qutebrowser/keyinput/basekeyparser.py
index 88c1774c1..db7a6705f 100644
--- a/qutebrowser/keyinput/basekeyparser.py
+++ b/qutebrowser/keyinput/basekeyparser.py
@@ -306,7 +306,9 @@ class BaseKeyParser(QObject):
         if handled or not self._supports_chains:
             return handled
         match = self._handle_single_key(e)
-        self.keystring_updated.emit(self._keystring)
+        # don't emit twice if the keystring was cleared in self.clear_keystring
+        if self._keystring:
+            self.keystring_updated.emit(self._keystring)
         return match != self.Match.none
 
     def read_config(self, modename=None):