fixbugs

stmms-web/src/main/java/cn/com/qmth/stmms/api/controller/ExamStudentController.java

@@ -231,7 +231,8 @@ public class ExamStudentController extends BaseApiController {
                         obj.accumulate(
                                 "tags",
                                 studentService.buildSheetTags(student, withGroupScoreTrack != null
-                                        && withGroupScoreTrack.booleanValue(), sliceConfigFix));
+                                        && withGroupScoreTrack.booleanValue(),
+                                        sliceConfigFix != null && sliceConfigFix.booleanValue()));
                     }
                     // 返回原图下载地址
                     if (withSheetUrl != null && withSheetUrl.booleanValue()) {