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/**     * @ORM\OneToOne(targetEntity="SourceGroup")     * @ORM\JoinColumn(name="source_group_id", referencedColumnName="id")      */        protected $sourceGroup;        /**     * @OneToOne(targetEntity="SourceType")     * @JoinColumn(name="source_type_id", referencedColumnName="remote_id")      */    protected $sourceType;