Seeing concurrent modification exceptions from the user history manager in SAC logs

pkamal 20385x3975x6 6nk92j https://support.atlassian.com/rest/api/1.0/issues/picker [bc.issue.search.AbstractIssuePickerSearchProvider] Error while executing search request
java.util.ConcurrentModificationException
        at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
        at java.util.AbstractList$Itr.next(AbstractList.java:343)
        at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
        at com.atlassian.jira.user.DefaultUserIssueHistoryManager.getViewableIssueHistory(DefaultUserIssueHistoryManager.java:133)
        at com.atlassian.jira.user.DefaultUserIssueHistoryManager.getFullIssueHistoryWithPermissionChecks(DefaultUserIssueHistoryManager.java:74)
        at com.atlassian.jira.plugin.jql.function.IssueHistoryFunction.getValues(IssueHistoryFunction.java:46)
        at com.atlassian.jira.jql.operand.FunctionOperandHandler.getValues(FunctionOperandHandler.java:35)
        at com.atlassian.jira.jql.operand.FunctionOperandHandler.getValues(FunctionOperandHandler.java:19)
        at com.atlassian.jira.jql.operand.DefaultJqlOperandResolver.getValues(DefaultJqlOperandResolver.java:83)
        at com.atlassian.jira.jql.query.IssueIdClauseQueryFactory.getQuery(IssueIdClauseQueryFactory.java:65)
        at com.atlassian.jira.jql.query.QueryVisitor.visit(QueryVisitor.java:147)
        at com.atlassian.jira.jql.query.QueryVisitor.visit(QueryVisitor.java:23)
        at com.atlassian.query.clause.TerminalClauseImpl.accept(TerminalClauseImpl.java:137)
        at com.atlassian.jira.jql.query.QueryVisitor.createQuery(QueryVisitor.java:64)
        at com.atlassian.jira.jql.query.DefaultLuceneQueryBuilder.createLuceneQuery(DefaultLuceneQueryBuilder.java:34)
        at com.atlassian.jira.issue.search.providers.LuceneSearchProvider.getHits(LuceneSearchProvider.java:151)
        at com.atlassian.jira.issue.search.providers.LuceneSearchProvider.search(LuceneSearchProvider.java:238)
        at com.atlassian.jira.issue.search.providers.LuceneSearchProvider.search(LuceneSearchProvider.java:80)
        at com.atlassian.jira.bc.issue.search.AbstractIssuePickerSearchProvider.getResults(AbstractIssuePickerSearchProvider.java:85)
        at com.atlassian.jira.bc.issue.search.DefaultIssuePickerSearchService.getResults(DefaultIssuePickerSearchService.java:61)
        at sun.reflect.GeneratedMethodAccessor612.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129)