- Address heisenbug reported where performance panel template variabl…

…es cause

  unexpected results.  Can't repeat, but reporter indicates the fix works for
  him, so hail marying.

CHANGES.txt

@@ -1,3 +1,10 @@
+Next release
+------------
+
+- Address heisenbug reported where performance panel template variables cause
+  unexpected results.  Can't repeat, but reporter indicates the fix works for
+  him, so hail marying.
+
 0.9.5 (2011-11-12)
 ------------------
 

pyramid_debugtoolbar/panels/performance.py

@@ -198,6 +198,8 @@ def content(self):
         if self.is_active:
             vars['stats'] = self.stats
             vars['function_calls'] = self.function_calls
+        else:
+            vars['stats'] = None
         return self.render(
             'pyramid_debugtoolbar.panels:templates/performance.mako',
             vars, request=self.request)