[gtk+/gtk-3-22] Adwaita: Avoid expander<>combobox interference

[Daniel Boles <dboles src gnome org>]

commit b4b9aa1e5fab6a1f8c27b768813ab4ed04f3cd6f
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 8dd242a..989d079 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -3661,7 +3661,7 @@ row {
  * Expanders *
  *************/
 expander {
-  arrow {
+  title > arrow {
     min-width: 16px;
     min-height: 16px;
     -gtk-icon-source: -gtk-icontheme('pan-end-symbolic');