[rhythmbox] task-list: try even harder to not expire removed tasks

[Jonathan Matthew <jmatthew src gnome org>]

commit c2e5ffcbda972108a15824a69fe5f2b9c6228718
Author: Jonathan Matthew <jonathan d14n org>
Date:   Fri May 23 23:28:09 2014 +1000

    task-list: try even harder to not expire removed tasks
    
    probably actually fixed https://bugzilla.gnome.org/show_bug.cgi?id=724931

 shell/rb-task-list.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/shell/rb-task-list.c b/shell/rb-task-list.c
index b3816ef..c8405de 100644
--- a/shell/rb-task-list.c
+++ b/shell/rb-task-list.c
@@ -162,6 +162,9 @@ expire_task (RBTaskList *list, RBTaskProgress *task, gint seconds)
        TaskExpiry *expiry;
 
        cancel_expiry (list, task);
+       if (rb_list_model_find (list->model, task) == -1)
+               return;
+
        expiry = g_new0 (TaskExpiry, 1);
        expiry->task = task;
        expiry->list = list;