<?xml version="1.0" encoding="utf-8"?>
<django-objects version="1.0">
    <object pk="1" model="admin_views.modelwithstringprimarykey">
        <field type="CharField" name="id"><![CDATA[abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567890 -_.!~*'() ;/?:@&=+$, <>#%" {}|\^[]`]]></field>
    </object>    
</django-objects>