el-table-column设置fixed后，el-popover出现两个的解决办法。

折磨许久终于解决，百度到的答案，搬运纪念一下

<el-popover placement="bottom" title="编辑标签" width="400" trigger="manual" v-model="row.tagVisible"
        :ref="`popover-${row.id}`">
        <div class="close-icon">
            <i class="el-icon-circle-close" @click="handleTagShow(row.id)"></i>
        </div>
        <el-tag :key="tag.id" v-for="tag in row.portalDatasetsTagList" closable
            :disable-transitions="false" style="margin-right:8px;margin-bottom:8px;"
            @close="handleClose(tag)">
            {{tag.tagName}}
        </el-tag>
        <el-select v-if="inputVisible" v-model="inputValue" ref="saveTagInput" filterable allow-create
            default-first-option placeholder="请选择标签" @change="handleInputConfirm">
            <el-option v-for="item in options" :key="item.id" :label="item.tagName" :value="item.id">
            </el-option>
        </el-select>
        <el-button v-else class="button-new-tag" size="small" @click="showInput" :loading="addLoading">+
            标签
        </el-button>
        <el-button type="text" slot="reference" @click="handleTagShow(row.id)">
            {{buttonLabel}}
        </el-button>
    </el-popover>

handleTagShow(id) {
            this.row.tagVisible = !this.row.tagVisible
            const key = "popover-" + id
            this.$nextTick(() => {
                document.getElementById(this.$refs[key].$refs.popper.id).style.display =
                    "none"
            })
        }

值得纪念这个