....

src/modules/examwork/view/examStudent.vue

@@ -982,7 +982,7 @@ export default {
         ],
         studentCode: [{ validator: validateStuCode, trigger: "blur" }],
         identityNumber: [
-          { validator: validateIdentityNumber, trigger: "blur" }
+          { required: true, validator: validateIdentityNumber, trigger: "blur" }
         ],
         courseId: [
           {