[gimp] app: add a forgotten g_object_unref()

[Michael Natterer <mitch src gnome org>]

commit b43be361ffa12228fc7b2178f6244ae7f9415e77
Author: Michael Natterer <mitch gimp org>
Date:   Wed Jun 23 22:50:45 2010 +0200

    app: add a forgotten g_object_unref()
    
    so all dockables are destroyed when a dock is destroyed.

 app/widgets/gimppanedbox.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/app/widgets/gimppanedbox.c b/app/widgets/gimppanedbox.c
index e7b6606..d296fac 100644
--- a/app/widgets/gimppanedbox.c
+++ b/app/widgets/gimppanedbox.c
@@ -580,6 +580,8 @@ gimp_paned_box_remove_widget (GimpPanedBox *paned_box,
         gtk_box_pack_start (GTK_BOX (paned_box), other_widget, TRUE, TRUE, 0);
 
       g_object_unref (other_widget);
+
+      g_object_unref (widget);
     }
 }