vue-baidu-map 实现地图找房功能，但是出现bm-overlay的@click事件，第一次点击可以设置zoom，第二次点击zoom数值变了，但地图没缩小

[WDDLXWJJ]

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[WDDLXWJJ]

如题，zoom数值确实会变化，第一次点击会地图会缩小，但是后续点击同一个bm-overlay组件时地图却不能缩小

[WDDLXWJJ]

`<baidu-map
id="bm-view"
class="bm-view"
:center="center"
:zoom="zoom"
:scroll-wheel-zoom="true"
@ready="handler"
:min-zoom="minZoom"
:max-zoom="maxZoom"
@zoomend="handleZoomEnd"
@moveend="handleMoveEnd"
ref="bdmap"

<div v-if="!isZonePoints">
  <fatherZoneGeoPoints
    v-for="(item, index) in fatherZoneGeoPoints"
    :key="index"
    :zonePointInfo="item"
    @click.native="selZone(item, index)"
  ></fatherZoneGeoPoints>
</div>
<div v-if="isZonePoints">
  <sonZoneGeoPoints
    v-for="(item,index) in sonZoneGeoPoints"
    :key="index"
    :position="item.position"
    :zonePointInfo="item"
    @click.native="doViewAccountInfoList(item, index)"
  ></sonZoneGeoPoints>
</div>

methods: { selZone(item, index) { this.isZonePoints = true; this.$set(this.center, "lng", item.position.lng); this.$set(this.center, "lat", item.position.lat); this.zoom = this.boundaryZoom; //获取坐标信息（略） }, }`