fix： 修改 topoLogy 图片选择后 无法删除的问题

nezha-fronted/src/components/common/project/meta2d/js/meta2dMain.js

@@ -407,9 +407,11 @@ export default {
         obj[key] = findPen[key]
       }
       if (key === 'image') {
+        obj.imageId = pen[key]
         obj.icon = ''
       }
       if (key === 'icon') {
+        obj.imageId = pen[key]
         obj.image = ''
       }
       getTopology(this.meta2dId).setValue(obj) // 更新pen

nezha-fronted/src/components/common/project/meta2d/meta2dElement.vue

@@ -1233,6 +1233,11 @@ export default {
         this.pen.image = ''
         this.change('icon')
       }
+      if (!image.id) {
+        this.pen.image = image.image
+        this.pen.icon = ''
+        this.change('image')
+      }
     },
     colorChange (val, key) {
       this.pen.data.params[key] = val

nezha-fronted/src/components/common/project/meta2d/meta2dSelectImage.vue

@@ -3,7 +3,7 @@
     <div @click="changeSelectBoxShow(true)" style="position: relative">
       <div class="image-input">
         <span v-if="imageName">{{unit}} / {{imageName}}</span>
-        <i class="el-icon-circle-close" style="position: absolute;top: 10px;right: 10px;font-size: 14px" @click.stop="selectImageChange({image: '', id: ''})"/>
+        <i class="el-icon-circle-close" style="position: absolute;top: 10px;right: 10px;font-size: 14px" @click.stop="selectImageChange({image: '', id: ''}, true)"/>
       </div>
     </div>
 <!--    <div class="image-select-box" v-if="selectBoxShow">-->
@@ -252,9 +252,12 @@ export default {
     selectGroup (item) {
       item.show = !item.show
     },
-    selectImageChange (item) {
+    selectImageChange (item, isChange) {
       this.selectImgId = item.id
       this.selectImg = item
+      if (isChange) {
+        this.changImage()
+      }
     },
     changImage () {
       this.unit = this.selectImg.unit