[tasque/transition: 204/213] [Tasque.Gtk] Fix NRE on add task when all category is selected (again)

[Antonius Riha <antoniusri src gnome org>]

commit bbc9d2e8f8c55937cdac29e813436ddd50c97947
Author: Antonius Riha <antoniusriha gmail com>
Date:   Sun Aug 19 21:45:38 2012 +0200

    [Tasque.Gtk] Fix NRE on add task when all category is selected (again)

 src/Tasque.Gtk/TaskWindow.cs |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/Tasque.Gtk/TaskWindow.cs b/src/Tasque.Gtk/TaskWindow.cs
index 33721b5..97e929f 100644
--- a/src/Tasque.Gtk/TaskWindow.cs
+++ b/src/Tasque.Gtk/TaskWindow.cs
@@ -767,6 +767,8 @@ namespace Tasque
 		private Task CreateTask (string taskText, Category category)
 		{
 			Task task = backend.CreateTask (taskText);
+			if (category == null)
+				category = GtkApplication.Instance.Backend.DefaultCategory;
 			category.Add (task);
 			
 			if (task == null) {