refactor(测试跟踪): 用例关联缺陷，清空上次的筛选条件

--bug=1025056 --user=陈建星 【测试跟踪】功能用例-编辑-关联缺陷-按平台筛选后再次关联-仍显示上一次筛选结果-但是筛选条件被清空了 https://www.tapd.cn/55049933/s/1358646

test-track/frontend/src/business/case/components/case/CaseIssueRelateList.vue

@@ -254,10 +254,17 @@ export default {
       this.$refs.relevanceDialog.selectCounts = data;
     },
     open() {
+
+      // 清空查询条件
+      this.page = getPageInfo({
+        components: TEST_CASE_RELEVANCE_ISSUE_LIST,
+      });
+
       this.getIssueTemplate();
       this.getIssues();
       this.visible = true;
       this.$refs.relevanceDialog.open();
+
       getPlatformOption()
         .then((r) => {
           setIssuePlatformComponent(r.data, this.page.condition.components);