I had neglected to add the barcode page to the appropriate size group. Longer
names in the zint backend caused the style combobox to be the long pole in
the tent, causing the width of the object editor to fluctuate when selecting
and un-selecting barcode objects.
<widget name="fill_page_vbox"/>
<widget name="img_page_vbox"/>
<widget name="data_page_vbox"/>
+ <widget name="bc_page_vbox"/>
<widget name="size_page_vbox"/>
<widget name="lsize_page_vbox"/>
<widget name="shadow_page_vbox"/>
</object>
<object class="GtkSizeGroup" id="width_sizegroup">
<widgets>
- <widget name="notebook"/>
<widget name="title_hbox"/>
+ <widget name="notebook"/>
</widgets>
</object>
</interface>