[pitivi] undo: Warn when ignoring action pushes

[Alexandru Băluț <alexbalut src gnome org>]

commit dbdce008ee14a9dd00c9cda565de2d4f39ee81ab
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Thu Apr 14 21:40:25 2016 +0200

    undo: Warn when ignoring action pushes
    
    Differential Revision: https://phabricator.freedesktop.org/D913

 pitivi/undo/undo.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/undo/undo.py b/pitivi/undo/undo.py
index 27a26f5..c718c29 100644
--- a/pitivi/undo/undo.py
+++ b/pitivi/undo/undo.py
@@ -196,7 +196,7 @@ class UndoableActionLog(GObject.Object, Loggable):
         try:
             stack = self._get_last_stack()
         except UndoWrongStateError as e:
-            self.debug("Ignore push because %s", e)
+            self.warning("Ignore push because: %s", e)
             return
         stack.push(action)
         self.debug("push action %s in action group %s",