Contents are not imported when BodyContent objects refer to their belonging content using the ContentObjectEntity class

<object class="BodyContent" package="com.atlassian.confluence.core">
    <id name="id">1212429</id>
    <property name="body"><![CDATA[<p>hello</p>]]></property>
    <property name="bodyType">2</property>
    <property name="content" class="ContentEntityObject" package="com.atlassian.confluence.core"><id name="id">851987</id></property>
</object>