--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+ <object class="GtkGrid">
+ <child>
+ <object class="GtkLabel">
+ <layout>
+ <property name="left-attach">0</property>
+ <property name="top-attach">0</property>
+ </layout>
+ </object>
+ </child>
+ </object>
+</interface>
--- /dev/null
+<!-- non-default child property remains -->
+<interface>
+ <object class="GtkGrid">
+ <child>
+ <object class="GtkLabel">
+ <layout>
+ <property name="left-attach">0</property>
+ <property name="top-attach">0</property>
+ </layout>
+ </object>
+ </child>
+ </object>
+</interface>