Prevent query by ID and perform JOIN instead

Support
,
#1

Hi, in Jmix 2.0 I have an entity (“Person”) with a variable Author which has a FK to a Person itself.
In the detail view of a Person I want to show the name and the surname of the Person related to the Author of the main Person.
I did achive that but the query applies a correct JOIN on the table Author but not to the Person related to the author. Instead it performs a separated query by ID and I need to prevent that.

In the entity Author:

  @InstanceName
    @DependsOnProperties({"person"})
    public String getInstanceName(){
       return person.getInstanceName();
    }

In the entity Person:

@InstanceName
    @DependsOnProperties({"surname", "name"})
    public String getInstanceName(){
        if(surname!=null && name!=null) {
            return surname + " " + name;
        }
        return null;
    }

In the fetch plan tag of the detail view I tried both

<property name="autore" fetch="JOIN" fetchPlan="_instance_name"/>

and

<property name="autore" fetch="JOIN" fetchPlan="_base"/>

but the result is the same.

Thank you in advance.