SmartEdit nested Components with partOf-relations

[chrlange]

Hi,

if we try to edit Components with "partOf"-relations in SmartEdit we get the error message: "catalogVersion must neither be null nor empty". We have several components with "partOf"-relations to other components like this:

 ...
 <attribute qualifier="primaryCTA" type="CMSLinkComponent">
     <modifiers partof="true" />
     <persistence type="property" />
 </attribute>....

What we found out is that these nested/partOf componets get serialized(the whole object), but smartEdit is just expecting the uuid of those components. Is this a bug in smartEdit or are relations like that kind of forbidden for CMS-Components? Or do we need to configure custom converters for those components?

It is similar to the following question but nested components with a "real" relations work: https://answers.sap.com/questions/12771114/error-while-trying-to-edit-nested-component-via-sm-1.html

We are on Version 18.08-5.