[gnome-initial-setup] timezone: allow clicking through the overlay

[Will Thompson <wjt src gnome org>]

commit f31416a890a7ae4d1fbe421cae140ace4b57f5fa
Author: Will Thompson <wjt endlessm com>
Date:   Mon Nov 12 21:10:59 2018 +0000

    timezone: allow clicking through the overlay
    
    For the longest time, I didn't realise that the map is clickable,
    because (like most of Europe) my home city is underneath the overlay,
    and clicks were previously captured by the overlay rather than being
    allowed to pass through to the map beneath.

 gnome-initial-setup/pages/timezone/gis-timezone-page.ui | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/gnome-initial-setup/pages/timezone/gis-timezone-page.ui 
b/gnome-initial-setup/pages/timezone/gis-timezone-page.ui
index 84b10d7..63447ea 100644
--- a/gnome-initial-setup/pages/timezone/gis-timezone-page.ui
+++ b/gnome-initial-setup/pages/timezone/gis-timezone-page.ui
@@ -84,6 +84,9 @@
                         <property name="halign">center</property>
                         <property name="valign">center</property>
                       </object>
+                      <packing>
+                        <property name="pass-through">True</property>
+                      </packing>
                     </child>
                   </object>
                 </child>