The test is supposed to definitely wrap, make sure it does.
<interface>
<!-- interface-requires gtk+ 3.0 -->
<object class="GtkWindow" id="window1">
+ <property name="height_request">500</property>
+ <property name="width_request">500</property>
<property name="can_focus">False</property>
<property name="type">popup</property>
<child>
<interface>
<!-- interface-requires gtk+ 3.0 -->
<object class="GtkWindow" id="window1">
+ <property name="height_request">500</property>
+ <property name="width_request">500</property>
<property name="can_focus">False</property>
<property name="type">popup</property>
<child>
<property name="position">3</property>
</packing>
</child>
+ <child>
+ <placeholder/>
+ </child>
</object>
</child>
</object>