Multiple fields OneToOne related to same table - cascade

Question

I was trying few things to use built in feature into TypeORM to remove childs of parent, but without success. Here's table:

@Entity({ name: 'Item' })
export class ItemEntity {
    @PrimaryGeneratedColumn()
    id: number;

    @OneToOne(() => ElementEntity, { cascade: true })
    @JoinColumn()
    mainElement: ElementEntity;

    @OneToOne(() => ElementEntity, { cascade: true })
    @JoinColumn()
    secondaryElement: ElementEntity;
}

and ElementEntity:

@Entity({ name: 'Element' })
export class ElementEntity {

    @PrimaryGeneratedColumn()
    public readonly id: number;

    @Column()
    public readonly name: string;
}

So as you can see there's nothing about Item in Element. And I wanna leave it this way. So for now what I'm doing is removing mainElement and secondaryElement in transaction before removing Item, cause whatever I put into OneToOne options does not work. Pasted without thinking onDelete: 'CASCADE' removedOrphanedRowAction.. nada, does not help here.

Is there some mechanic that will give me possibility to call .remove() on item and TypeORM will take care of its two childs?