组件升级：

+ @vue/cli-service@4.5.9
+ @vue/cli-plugin-router@4.5.9
+ @vue/cli-plugin-eslint@4.5.9
+ @vue/cli-plugin-babel@4.5.9
+ @vue/cli-plugin-vuex@4.5.9

bug 修复：
重置

source/vue/xzs-admin/src/views/task/edit.vue

@@ -176,6 +176,12 @@ export default {
     },
     resetForm () {
       this.$refs['form'].resetFields()
+      this.form = {
+        id: null,
+        gradeLevel: null,
+        title: '',
+        paperItems: []
+      }
     },
     subjectFormatter (row, column, cellValue, index) {
       return this.subjectEnumFormat(cellValue)