[TYPO3-mvc] Same Model Relations result in a sql error

[Philipp]

Hey guys

I have a very generic SuperClassModel which gets inherited by a few subclasses

Example:
Model A {
/** @var A */
protected $relation
}

So this model has a relation to a model of the same type.

Now when adding this constraint to my query it generates a join on self but with no alias

that looks like

select * from a left join a on a.relation = a.uid ....

That of course throws a sql error.

How can i do those kind of self-joins? How can i define that property or TCA to avoid this error?

A little more background:
My Basemodel is a located record
It gets extended by a specific event record, a specific harbourer record and a specific location record

in the event record i need a relation to a location record.