|  | @@ -2227,7 +2227,7 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
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				|  |  |          Map<Long, IntegerAndIntegerListDto> classGroupTeachingTeacherMap = classGroupAndUserIdsMap.stream()
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				|  |  |                  .collect(Collectors.toMap(IntegerAndIntegerListDto::getId, integerAndIntegerListDto -> integerAndIntegerListDto));
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				|  |  |  
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				|  |  | -        existCourseSchedules.sort(Comparator.comparing(CourseSchedule::getStartClassTime));
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				|  |  | +		allCourseSchedules.sort(Comparator.comparing(CourseSchedule::getStartClassTime));
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				|  |  |          courseSchedules.sort(Comparator.comparing(CourseSchedule::getStartClassTime));
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				|  |  |  
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				|  |  |          newNode:
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