This was another victim of clipping changes - the labels were
overdrawing each other, leading to test failure. Prevent this
by separating the grid columns.
<object class="GtkGrid" id="grid1">
<property name="visible">True</property>
<property name="can_focus">False</property>
+ <property name="column_spacing">2</property>
<child>
<object class="GtkLabel" id="label1">
<property name="visible">True</property>
<object class="GtkGrid" id="grid1">
<property name="visible">True</property>
<property name="can_focus">False</property>
+ <property name="column_spacing">2</property>
<child>
<object class="GtkLabel" id="label1">
<property name="visible">True</property>