From 469175396500235c620030938befaa8b55f6af1d Mon Sep 17 00:00:00 2001
From: Florian Bruhin <git@the-compiler.org>
Date: Mon, 19 Feb 2018 05:19:25 +0100
Subject: [PATCH] Avoid running change handlers on config.clear

---
 qutebrowser/config/config.py      | 5 +++--
 qutebrowser/config/configutils.py | 2 ++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/qutebrowser/config/config.py b/qutebrowser/config/config.py
index baadf1cfa..b3ebc97c3 100644
--- a/qutebrowser/config/config.py
+++ b/qutebrowser/config/config.py
@@ -415,8 +415,9 @@ class Config(QObject):
         file.
         """
         for name, values in self._values.items():
-            values.clear()
-            self.changed.emit(name)
+            cleared = values.clear()
+            if cleared:
+                self.changed.emit(name)
 
         if save_yaml:
             self._yaml.clear()
diff --git a/qutebrowser/config/configutils.py b/qutebrowser/config/configutils.py
index c915b7674..cae1de7b7 100644
--- a/qutebrowser/config/configutils.py
+++ b/qutebrowser/config/configutils.py
@@ -92,7 +92,9 @@ class Values:
 
     def clear(self):
         """Clear all customization for this value."""
+        had_values = bool(self._values)
         self._values = []
+        return had_values
 
     def _get_fallback(self):
         """Get the fallback global/default value."""