In a pop-up window, Vue invokes the interface many times. The first time the page is opened, it is called only once, and the second time, without refreshing the page, it is called twice. Has anyone ever encountered this?

var plan_table = new Vue ({

        el: "-sharpplanListTable",
        created:function(){
            var that = this;
            planInfoInit.tablevueSelf = this;
            getTableData();
        },
        data:{
            tableData:[]
        },
        methods: {
            showDetail: function (event) {
                var id = $(event.currentTarget).attr("id");
                $.ajax({
                    url:httpresquest.header+"/knowledge/emergencyPlan/getEmergencyPlanById?id="+id,
                    type:"GET",
                    dataType:"JSON",
                    success:function(obj){
                        if(obj.success == true){
                            planInfoInit.detailvueSelf.vueDetailData = obj.data;
                            planInfoInit.wordvueSelf.vueWordData =  obj.data;
                        }
                    }
                });

            }
        },
        mounted:function (){
            this.$nextTick(function () {
                console.log(111111111111111111111111111111111111111111111);
                return;
            })
        }
    });
    plan_table.$watch("tableData",function(){
        if($("-sharpplanListTable tbody").find("tr:first-child").length>0){
            $("-sharpplanListTable tbody").find("tr:first-child").click();
        }else{
            planInfoInit.detailvueSelf.vueDetailData = "";
            planInfoInit.wordvueSelf.vueWordData = "";
        }
        console.log(222222222222222222222222222);
        return false;
    });
May.31,2021

at least go to js.do or jsfiddle to write a page that can reproduce errors

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