Doctrine orm 为什么属性不保存在Sonata multiselect OneToMany中？

StateDisasterScenarioAdmin->configureFormFields（）：

State.php有以下功能：

 /**
     * @var StateDisasterScenario|null
     *
     * @ORM\ManyToOne(targetEntity="Vop\CoreBundle\Entity\StateDisasterScenario", inversedBy="states")
     * @ORM\JoinColumn(name="disaster_scenario", referencedColumnName="id")
     */
    protected $disasterScenario;

public function setDisasterScenario(?StateDisasterScenario $disasterScenario): State
{
    $this->disasterScenario = $disasterScenario;

    return $this;
}

/**
 * @var ArrayCollection|\Vop\CoreBundle\Entity\StateAdmittedSurchargesSetting[]
 *
 * @ORM\OneToMany(targetEntity="Vop\CoreBundle\Entity\State", mappedBy="disasterScenario")
 */
protected $states;

public function setStates($states): StateDisasterScenario
{
    $this->states = $states;

    return $this;
}

StateDisasterScenario.php具有以下功能：

 /**
     * @var StateDisasterScenario|null
     *
     * @ORM\ManyToOne(targetEntity="Vop\CoreBundle\Entity\StateDisasterScenario", inversedBy="states")
     * @ORM\JoinColumn(name="disaster_scenario", referencedColumnName="id")
     */
    protected $disasterScenario;

public function setDisasterScenario(?StateDisasterScenario $disasterScenario): State
{
    $this->disasterScenario = $disasterScenario;

    return $this;
}

/**
 * @var ArrayCollection|\Vop\CoreBundle\Entity\StateAdmittedSurchargesSetting[]
 *
 * @ORM\OneToMany(targetEntity="Vop\CoreBundle\Entity\State", mappedBy="disasterScenario")
 */
protected $states;

public function setStates($states): StateDisasterScenario
{
    $this->states = $states;

    return $this;
}

不调用SetStates。但提交的状态设置为StateDisasterScenario。但是在状态上，没有设置StateDisasterScenario。我应该在哪里做