[gtk+] Adwaita: Avoid expander<>combobox interference

[Matthias Clasen <matthiasc src gnome org>]

commit 4241c4bdbd652abb76a3c9fc3e1194bc606a4477
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Dec 28 08:39:29 2017 -0500

    Adwaita: Avoid expander<>combobox interference
    
    Putting a combobox in an expander was causing the combo arrow
    to go sideways. Increase the specificity with which we address
    the expander arrow to avoid that.

 gtk/theme/Adwaita/_common.scss |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index dd3fcec..2689fbd 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -3627,7 +3627,7 @@ row {
  * Expanders *
  *************/
 expander {
-  arrow {
+  title > arrow {
     min-width: 16px;
     min-height: 16px;
     -gtk-icon-source: -gtk-icontheme('pan-end-symbolic');