inheriting dataSources, foreign keys and included fields

[claudiobosticco]

Hello, after seeing this strange error:
https://forums.smartclient.com/forum...832#post257832

I wonder if there's some problem with dataSources structured like this:

<DataSource xmlns:fmt="WEB-INF/" xmlns="http://www.smartclient.com/schema"
            ID="JOFC_CARRELLO_DETTAGLI_BASE"
            tableName="JOFC_CARRELLO_DETTAGLI"
            schema="mySchema"
            dbName="myDB"
            serverType="sql"
            requiresAuthentication="true"
>
    <fields>
......
        <field name="ID_ISCRIZIONE_SOCIO_FK" type="integer" foreignKey="JOFC_ISCRIZIONE_SOCIO.ID_REC"/>
.....

inheriting ds:

<DataSource xmlns:fmt="WEB-INF/" xmlns="http://www.smartclient.com/schema"
            ID="JOFC_CARRELLO_DETTAGLI_FO"
            tableName="JOFC_CARRELLO_DETTAGLI"
            ....
            inheritsFrom="JOFC_CARRELLO_DETTAGLI_BASE"
>
    <fields>
.....
        <field name="ID_SOCIO_FK" type="integer" includeFrom="JOFC_ISCRIZIONE_SOCIO.ID_SOCIO_FK"/>
        <field name="NOME_SOCIO" type="text" includeFrom="JOFC_ISCRIZIONE_SOCIO.JOFC_SOCI.NOME">
....

JOFC_ISCRIZIONE_SOCIO:

<DataSource xmlns:fmt="WEB-INF/" xmlns="http://www.smartclient.com/schema"
            ID="JOFC_ISCRIZIONE_SOCIO"
            tableName="JOFC_ISCRIZIONE_SOCIO"
            ...
            inheritsFrom="JOFC_ISCRIZIONE_SOCIO_BASE"
>
 ....

JOFC_ISCRIZIONE_SOCIO_BASE declares the fk:

<DataSource xmlns:fmt="WEB-INF/" xmlns="http://www.smartclient.com/schema"
            ID="JOFC_ISCRIZIONE_SOCIO_BASE"
            tableName="JOFC_ISCRIZIONE_SOCIO"
....
>
    <fields>
.....
        <field name="ID_SOCIO_FK" type="integer" foreignKey="JOFC_SOCI.ID_REC"/>
...

and then also JOFC_SOCI inherits the ID_REC field from JOFC_SOCI_BASE.

So, the 'base' dataSources declare the foreign keys using the ID of the inheriting dataSources, and also the inheriting dataSources IDs are used to include fields.

Is this ok, or am I misusing something?