[gimp] app: let the tag popup own its tag objects

[Nils Philippsen <nphilipp src gnome org>]

commit b109e0580650b4b49b6f00b15fec4bcd330fb045
Author: Nils Philippsen <nils redhat com>
Date:   Tue Apr 16 11:16:41 2013 +0200

    app: let the tag popup own its tag objects
    
    This should fix crashes in which tag objects got accessed after they
    were disposed, because they still were stored with the popup object.

 app/widgets/gimptagpopup.c | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/app/widgets/gimptagpopup.c b/app/widgets/gimptagpopup.c
index 9782e88..060c2a9 100644
--- a/app/widgets/gimptagpopup.c
+++ b/app/widgets/gimptagpopup.c
@@ -257,6 +257,8 @@ gimp_tag_popup_constructed (GObject *object)
       tag_data->tag   = tag_iterator->data;
       tag_data->state = GTK_STATE_NORMAL;
 
+      g_object_ref (tag_data->tag);
+
       for (j = 0; j < current_count; j++)
         {
           if (! gimp_tag_compare_with_string (tag_data->tag, current_tags[j]))
@@ -386,6 +388,13 @@ gimp_tag_popup_dispose (GObject *object)
 
   if (popup->tag_data)
     {
+      gint i;
+
+      for (i = 0; i < popup->tag_count; i++)
+        {
+          g_object_unref (popup->tag_data[i].tag);
+        }
+
       g_free (popup->tag_data);
       popup->tag_data = NULL;
     }