->onlyDeleted() returns all

Hello,

I would like to use the softDelete Function from the CI Model Class. If I call the class with

PHP Code:

->where(xyz)->delete() 


it work's finde.
In my database the datetime will be written to "deleted_at".

But as i started to implement a recycle bin to my application i want to get all items which are not null in deleted_at.

CI Documentation says:

PHP Code:

$modelclass->onlyDeleted()->findAll(); 


But this return all entries also the not deleted...

I build a function on my own to get just deleted items. It looks like this and it is also working but i think this is not the right way..

PHP Code:

$deletedPersons = array();
foreach($allPersons as $person)
{
        if(strtotime($person->deleted_at) > 0)
        {
              array_push($deletedPersons,$person);
        }
} 


Does anyone have experience with soft deletes in CI4 ?
Maybe I used it the wrong way?

best regards,
Niklas