[empathy] Don't try to expand groups if the EmpathyIndividualView's store is unset

[Philip Withnall <pwithnall src gnome org>]

commit 23566ca74cbdca4b237f9fd0758493bee26e95a9
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Aug 20 11:04:40 2010 +0100

    Don't try to expand groups if the EmpathyIndividualView's store is unset

 libempathy-gtk/empathy-individual-view.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/libempathy-gtk/empathy-individual-view.c b/libempathy-gtk/empathy-individual-view.c
index d2562fc..9a7e521 100644
--- a/libempathy-gtk/empathy-individual-view.c
+++ b/libempathy-gtk/empathy-individual-view.c
@@ -1356,8 +1356,12 @@ individual_view_expand_idle_cb (EmpathyIndividualView *self)
   g_signal_handlers_block_by_func (self,
     individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (FALSE));
 
-  gtk_tree_model_foreach (GTK_TREE_MODEL (priv->filter),
-      (GtkTreeModelForeachFunc) expand_idle_foreach_cb, self);
+  /* The store/filter could've been removed while we were in the idle queue */
+  if (priv->filter != NULL)
+    {
+      gtk_tree_model_foreach (GTK_TREE_MODEL (priv->filter),
+          (GtkTreeModelForeachFunc) expand_idle_foreach_cb, self);
+    }
 
   g_signal_handlers_unblock_by_func (self,
       individual_view_row_expand_or_collapse_cb, GINT_TO_POINTER (FALSE));