[gtk+] treeview: Invalidate children properly

[Benjamin Otte <otte src gnome org>]

commit a7d213854460a7820d9665650a507081b9d196b7
Author: Benjamin Otte <otte redhat com>
Date:   Mon Oct 1 11:54:18 2012 +0200

    treeview: Invalidate children properly
    
    GtkTreeView still uses regions (yay!), so we need to invalidate the
    regions when hiding/showing children, and not their siblings.

 gtk/gtktreeview.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 0b1599e..182374c 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -11922,7 +11922,7 @@ _gtk_tree_view_reset_header_styles (GtkTreeView *tree_view)
       if (!header_widget)
         header_widget = gtk_tree_view_column_get_button (column);
 
-      _gtk_widget_invalidate_style_context (header_widget, GTK_CSS_CHANGE_POSITION | GTK_CSS_CHANGE_SIBLING_POSITION);
+      _gtk_widget_invalidate_style_context (header_widget, GTK_CSS_CHANGE_PARENT_REGION);
     }
 }