handle exeGrade condition - neverCache

src/components/MxCondition/condition-object/condition-exe-grade.js

@@ -11,6 +11,7 @@ export default {
   },
   key: 'exeGrade',
   title: '学册',
+  neverCache: true,
   getList: function(param,$ref) {
     return new Promise((resolve, reject) => {
       smartGradeList({subjectId:$ref.model.exeSubject,editionId:param.exeOrder}).then(res => resolve(res.data  || []))