[hamster-applet] setting label to blank made previous value to be rendered instead as the drawing went away with the

[Toms Baugis <tbaugis src gnome org>]

commit c7c9fe778c7ffd040e38065c3b8f9ef8ae174918
Author: Toms Bauģis <toms baugis gmail com>
Date:   Fri Sep 24 09:44:12 2010 +0100

    setting label to blank made previous value to be rendered instead as the drawing went away with the cache

 src/hamster/utils/graphics.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/hamster/utils/graphics.py b/src/hamster/utils/graphics.py
index 1549e9e..0ac5af8 100644
--- a/src/hamster/utils/graphics.py
+++ b/src/hamster/utils/graphics.py
@@ -944,6 +944,7 @@ class Label(Sprite):
 
     def on_render(self, sprite):
         if not self.text:
+            self.graphics.clear()
             return
 
         self.graphics.set_color(self.color)