[gtk+] csscomputedvalues: Unset the section when setting a new value

[Benjamin Otte <otte src gnome org>]

commit 2f89505b5484d7712ddc5771c754ca74e121610b
Author: Benjamin Otte <otte redhat com>
Date:   Mon Oct 1 10:32:59 2012 +0200

    csscomputedvalues: Unset the section when setting a new value
    
    Otherwise we end up with the wrong section if no new one is specified.

 gtk/gtkcsscomputedvalues.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkcsscomputedvalues.c b/gtk/gtkcsscomputedvalues.c
index b60324e..12424cc 100644
--- a/gtk/gtkcsscomputedvalues.c
+++ b/gtk/gtkcsscomputedvalues.c
@@ -195,6 +195,12 @@ _gtk_css_computed_values_set_value (GtkCssComputedValues *values,
   if (dependencies & (GTK_CSS_DEPENDS_ON_FONT_SIZE))
     values->depends_on_font_size = _gtk_bitmask_set (values->depends_on_font_size, id, TRUE);
 
+  if (values->sections && values->sections->len > id && g_ptr_array_index (values->sections, id))
+    {
+      gtk_css_section_unref (g_ptr_array_index (values->sections, id));
+      g_ptr_array_index (values->sections, id) = NULL;
+    }
+
   if (section)
     {
       if (values->sections == NULL)