JIRA 7.6 DVCS Sync fails with PSQLException

2018-03-28 08:58:25,387 http-nio-8080-exec-21 ERROR admin 538x208x1 1jkt6tr 172.21.44.34 /secure/admin/AddGithubOrganization!finish.jspa [c.a.j.p.d.sync.impl.DefaultSynchronizer] Caught PSQLException for delete from "public"."AO_E8B6CC_MESSAGE"
com.querydsl.core.QueryException: Caught PSQLException for delete from "public"."AO_E8B6CC_MESSAGE"
	at com.querydsl.sql.DefaultSQLExceptionTranslator.translate(DefaultSQLExceptionTranslator.java:50)
	at com.querydsl.sql.Configuration.translate(Configuration.java:453)
	at com.querydsl.sql.dml.SQLDeleteClause.execute(SQLDeleteClause.java:209)
	at com.atlassian.jira.plugins.dvcs.dao.impl.querydsl.MessageDaoQueryDsl.lambda$deleteAllByTag$6(MessageDaoQueryDsl.java:158)
	at com.atlassian.pocketknife.internal.querydsl.DatabaseAccessorImpl.lambda$execute$0(DatabaseAccessorImpl.java:66)
	at com.atlassian.sal.core.rdbms.DefaultTransactionalExecutor.executeInternal(DefaultTransactionalExecutor.java:86)
	at com.atlassian.sal.core.rdbms.DefaultTransactionalExecutor.lambda$execute$0(DefaultTransactionalExecutor.java:42)
	at com.atlassian.jira.database.DatabaseAccessorImpl.runInManagedTransaction(DatabaseAccessorImpl.java:125)
	... 2 filtered
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.atlassian.plugin.util.ContextClassLoaderSettingInvocationHandler.invoke(ContextClassLoaderSettingInvocationHandler.java:26)
	at com.sun.proxy.$Proxy374.runInManagedTransaction(Unknown Source)
	... 2 filtered
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.atlassian.plugin.osgi.bridge.external.HostComponentFactoryBean$DynamicServiceInvocationHandler.invoke(HostComponentFactoryBean.java:136)
	at com.sun.proxy.$Proxy374.runInManagedTransaction(Unknown Source)
	at com.atlassian.sal.jira.rdbms.JiraHostConnectionAccessor.runInStartedOrExistingTransaction(JiraHostConnectionAccessor.java:130)
	at com.atlassian.sal.jira.rdbms.JiraHostConnectionAccessor.execute(JiraHostConnectionAccessor.java:60)
	at com.atlassian.sal.core.rdbms.DefaultTransactionalExecutor.execute(DefaultTransactionalExecutor.java:39)
	at com.atlassian.pocketknife.internal.querydsl.DatabaseAccessorImpl.execute(DatabaseAccessorImpl.java:64)
	at com.atlassian.pocketknife.internal.querydsl.DatabaseAccessorImpl.runInTransaction(DatabaseAccessorImpl.java:40)
	at com.atlassian.jira.plugins.dvcs.dao.impl.querydsl.MessageDaoQueryDsl.deleteAllByTag(MessageDaoQueryDsl.java:128)
	at com.atlassian.jira.plugins.dvcs.service.MessagingServiceImpl.cancel(MessagingServiceImpl.java:317)
	at com.atlassian.jira.plugins.dvcs.sync.impl.DefaultSynchronizer.stopSynchronization(DefaultSynchronizer.java:293)
	at com.atlassian.jira.plugins.dvcs.sync.impl.DefaultSynchronizer.removeRepoDataForFullSync(DefaultSynchronizer.java:231)
	at com.atlassian.jira.plugins.dvcs.sync.impl.DefaultSynchronizer.doSync(DefaultSynchronizer.java:159)
	at com.atlassian.jira.plugins.dvcs.service.RepositorySyncServiceImpl.doSync(RepositorySyncServiceImpl.java:469)
	at com.atlassian.jira.plugins.dvcs.service.RepositorySyncServiceImpl.syncNewRepo(RepositorySyncServiceImpl.java:415)
	at com.atlassian.jira.plugins.dvcs.service.RepositorySyncServiceImpl.syncRepos(RepositorySyncServiceImpl.java:401)
	at com.atlassian.jira.plugins.dvcs.service.RepositorySyncServiceImpl.syncAllInOrganization(RepositorySyncServiceImpl.java:380)
	at com.atlassian.jira.plugins.dvcs.service.RepositorySyncServiceImpl.syncRepositoryList(RepositorySyncServiceImpl.java:202)
	at com.atlassian.jira.plugins.dvcs.service.OrganizationServiceImpl.save(OrganizationServiceImpl.java:188)
	at com.atlassian.jira.plugins.dvcs.spi.github.webwork.AddGithubOrganization.doAddOrganization(AddGithubOrganization.java:151)
	at com.atlassian.jira.plugins.dvcs.spi.github.webwork.AddGithubOrganization.doFinish(AddGithubOrganization.java:120)
	... 
Caused by: org.postgresql.util.PSQLException: ERROR: update or delete on table "AO_E8B6CC_MESSAGE" violates foreign key constraint "fk_ao_e8b6cc_message_queue_item_message_id" on table "AO_E8B6CC_MESSAGE_QUEUE_ITEM"
  Detail: Key (ID)=(3) is still referenced from table "AO_E8B6CC_MESSAGE_QUEUE_ITEM".
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2455)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2155)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:288)
	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:430)
	at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:168)
	at org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:135)
	at org.apache.commons.dbcp2.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:98)
	at org.apache.commons.dbcp2.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:98)
	at com.querydsl.sql.dml.SQLDeleteClause.execute(SQLDeleteClause.java:195)
	... 284 more