filtering relationshipPanel rows

[hi-ko]

I try to filter records on Accounts for my custom entity "Contract" in the relationship panel "contracts" so I defined:

custom/Espo/Custom/SelectManagers/Contract.php

<?php
namespace Espo\Custom\SelectManagers;


class Contract extends \Espo\Core\SelectManagers\Base
{
protected function filterActive(&$result)
{
$result['whereClause'][] = array(
'status' => ['active']
);
}
}
?>

I'm able to filter the related records by accessing /api/v1/Account/{entityId}/contracts?primaryFilter=active

Unfortunately the "selectPrimaryFilterName" seems to not having any effect:

custom/Espo/Custom/Resources/metadata/clientDefs/Account.json

{
"relationshipPanels": {
"contracts": {
"selectPrimaryFilterName": "active"
}
}
}

I cleaned up cache on the server and in my browser but still see browser requests setting an empty filter

primaryFilter=

Do I miss anything? Is selectPrimaryFilterName the correct property to set a filter in the relationship panel?

Thanks

[hi-ko]

as a work around I now set a filter list with first value "active" which has a similar effect to filter on "active" but I still would like to understand correct usage of "selectPrimaryFilterName":

{
"relationshipPanels": {
"contracts": {
"filterList": ["active","all"],
"selectPrimaryFilterName": "active"
}
}
}