[gegl-edit] XML file loading fixed to work with GEGL master

[Isaac Wagner <isaacbw src gnome org>]

commit f31f08f6f10a4b4fa827e38b3141616f03e25c2e
Author: Isaac Wagner <isaacbw src gnome org>
Date:   Tue Jul 31 12:39:23 2012 -0400

    XML file loading fixed to work with GEGL master

 gegl-edit/gegl-edit.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/gegl-edit/gegl-edit.c b/gegl-edit/gegl-edit.c
index 695d247..7ff77ef 100644
--- a/gegl-edit/gegl-edit.c
+++ b/gegl-edit/gegl-edit.c
@@ -189,6 +189,9 @@ G_MODULE_EXPORT void activated_open(GtkMenuItem *menuitem, gpointer user_data)
 	  GeglNode* node = GEGL_NODE(list->data);
 
 	  GraphGtkNode *from = g_hash_table_lookup(hash_table, node);
+	  if(!from)
+	    break;
+
 	  g_print("from: %s\n", from->name);
 
 	  if(!gegl_node_has_pad(node, "output")) 
@@ -206,6 +209,9 @@ G_MODULE_EXPORT void activated_open(GtkMenuItem *menuitem, gpointer user_data)
 	  for(i = 0; i < num; i++)
 	    {
 	      GraphGtkNode *to = g_hash_table_lookup(hash_table, nodes[i]);
+	      if(!to)
+		break;
+
 	      g_print("to: %s\n", to->name);
 	      g_print("Connecting to consumer (%s to %s): output->%s\n", gegl_node_get_operation(node), gegl_node_get_operation(nodes[i]), pads[i]);
 	      graph_gtk_node_connect_to(from, "output", to, pads[i]);