removeAssociation example

$childrenAware = $reference->isChildrenAware();

            // first level of parent-child tree?             if ($childrenAware && $reference !== $definition) {
                // where product.children.parentId IS NULL                 $nested->addFilter(new EqualsFilter($reference->getEntityName() . '.parentId', null));
            }

            if ($cascade instanceof ChildrenAssociationField) {
                // break endless loop                 if ($childCounter >= 30 || !$cloneChildren) {
                    $criteria->removeAssociation($cascade->getPropertyName());

                    continue;
                }

                ++$childCounter;
                $this->addCloneAssociations($reference, $nested, $cloneChildren, $childCounter);

                continue;
            }

            $this->addCloneAssociations($reference, $nested, $cloneChildren);
        }