[evolution-data-server] Remove an assertion in ESourceSelector.

[Matthew Barnes <mbarnes src gnome org>]

commit 920b4177d81a6ca73690a1c726175da5b94fdbe5
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue Aug 18 08:12:33 2009 -0400

    Remove an assertion in ESourceSelector.
    
    Related to bug #541192.  Something accessibility-related is causing the
    assertion to fail.  The problem is still unknown, but the logic is more
    forgiving now.

 libedataserverui/e-source-selector.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/libedataserverui/e-source-selector.c b/libedataserverui/e-source-selector.c
index 9597f9f..ceaa2db 100644
--- a/libedataserverui/e-source-selector.c
+++ b/libedataserverui/e-source-selector.c
@@ -523,20 +523,18 @@ pixbuf_cell_data_func (GtkTreeViewColumn *column,
 	gpointer data;
 
 	gtk_tree_model_get (model, iter, 0, &data, -1);
+	g_return_if_fail (G_IS_OBJECT (data));
 
 	if (E_IS_SOURCE_GROUP (data)) {
-		g_object_set (renderer,
-			      "visible", FALSE,
-			      NULL);
-	} else {
+		g_object_set (renderer, "visible", FALSE, NULL);
+
+	} else if (E_IS_SOURCE (data)) {
 		ESource *source;
 		GdkPixbuf *pixbuf = NULL;
 		const gchar *color_spec;
 		GdkColor color;
 
-		g_assert (E_IS_SOURCE (data));
 		source = E_SOURCE (data);
-
 		color_spec = e_source_peek_color_spec (source);
 		if (color_spec != NULL && gdk_color_parse (color_spec, &color)) {
 			guint32 rgba;