[gimp] app: same fix as below in GimpDataFactoryView

[Michael Natterer <mitch src gnome org>]

commit 1af244b39c7e2aee35dd7e00640eabf6df334fb1
Author: Michael Natterer <mitch gimp org>
Date:   Tue Feb 24 19:17:50 2015 +0100

    app: same fix as below in GimpDataFactoryView
    
    gimp_data_factory_view_tree_name_edited(): change the GimpData's name
    only if it actually changed.

 app/widgets/gimpdatafactoryview.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/app/widgets/gimpdatafactoryview.c b/app/widgets/gimpdatafactoryview.c
index 3fea013..e5d0b96 100644
--- a/app/widgets/gimpdatafactoryview.c
+++ b/app/widgets/gimpdatafactoryview.c
@@ -592,7 +592,9 @@ gimp_data_factory_view_tree_name_edited (GtkCellRendererText *cell,
 
       name = g_strstrip (g_strdup (new_name));
 
-      if (gimp_data_is_writable (data) && strlen (name))
+      if (gimp_data_is_writable (data) &&
+          strlen (name)                &&
+          g_strcmp0 (name, gimp_object_get_name (data)))
         {
           gimp_object_take_name (GIMP_OBJECT (data), name);
         }