[gimp] app: keep a ref to the session info in gimp_session_info_restore()

[Michael Natterer <mitch src gnome org>]

commit 9e60dd547dd307cfec95a597dd5536e486e7e871
Author: Michael Natterer <mitch gimp org>
Date:   Thu May 12 20:53:21 2011 +0200

    app: keep a ref to the session info in gimp_session_info_restore()
    
    because failing to restore a dock can destroy the newly created dock
    and implicitly unref the session info.

 app/widgets/gimpsessioninfo.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/app/widgets/gimpsessioninfo.c b/app/widgets/gimpsessioninfo.c
index 052ca73..8f718ba 100644
--- a/app/widgets/gimpsessioninfo.c
+++ b/app/widgets/gimpsessioninfo.c
@@ -467,6 +467,8 @@ gimp_session_info_restore (GimpSessionInfo   *info,
   g_return_if_fail (GIMP_IS_SESSION_INFO (info));
   g_return_if_fail (GIMP_IS_DIALOG_FACTORY (factory));
 
+  g_object_ref (info);
+
   display = gdk_display_get_default ();
 
   if (info->p->screen != DEFAULT_SCREEN)
@@ -512,6 +514,8 @@ gimp_session_info_restore (GimpSessionInfo   *info,
                                     factory,
                                     screen,
                                     GIMP_DOCK_WINDOW (dialog));
+
+  g_object_unref (info);
 }
 
 /* This function mostly lifted from