Error on log when adding exceptions. UI is wrong

Go to assessment tool Click add Fill Assessment Title Click Create Add Question Select "Multiple choice" Fill Question Text and Answers Click Save Click Settings Click Availability and Submissions Assessment released to: Selected Group(s). Select a group "Discussion 1 SMLP101" Only 1 submissions allowed It is due: 45 minutes after due date (for example) has time limit - 5 minutes Click Save Click Settings Click Exceptions to Time Limit and Delivery Date Exception for Group: Select a group "Discussion 1 SMLP101" Click Add an Exception Exception for Group: Select a group "Discussion 1 SMLP101" (DON'T click Add an Excecption) Click Save Settings and Publish Click Publish Enter as a student and send the assessment 26-Sep-2019 12:47:57.534 ERROR [http-nio-20113-exec-21] org.sakaiproject.tool.assessment.facade.ExtendedTimeQueries.getPubAndX Failed to get extended time for pub: 21 and user/group: 18d09478-513e-49e2-82ec-6b6d4e3e57ea26-Sep-2019 12:47:57.534 ERROR [http-nio-20113-exec-21] org.sakaiproject.tool.assessment.facade.ExtendedTimeQueries.getPubAndX Failed to get extended time for pub: 21 and user/group: 18d09478-513e-49e2-82ec-6b6d4e3e57eaorg.springframework.dao.IncorrectResultSizeDataAccessException: query did not return a unique result: 2; nested exception is org.hibernate.NonUniqueResultException: query did not return a unique result: 2 at org.springframework.orm.hibernate4.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:178) at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:344) at org.springframework.orm.hibernate4.HibernateTemplate.execute(HibernateTemplate.java:296) at org.sakaiproject.tool.assessment.facade.ExtendedTimeQueries.getPubAndX(ExtendedTimeQueries.java:153) at org.sakaiproject.tool.assessment.facade.ExtendedTimeQueries.getEntryForPubAndGroup(ExtendedTimeQueries.java:103) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:283) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) at com.sun.proxy.$Proxy156.getEntryForPubAndGroup(Unknown Source) at org.sakaiproject.tool.assessment.facade.ExtendedTimeFacade.getEntryForPubAndGroup(ExtendedTimeFacade.java:57) at org.sakaiproject.tool.assessment.util.ExtendedTimeDeliveryService.<init>(ExtendedTimeDeliveryService.java:89) at org.sakaiproject.tool.assessment.util.ExtendedTimeDeliveryService.<init>(ExtendedTimeDeliveryService.java:57)