JT-19666: Can't access disposed EntityIterator.

com.jetbrains.teamsys.database.persistence.exceptions.PhysicalLayerException: Can't access disposed EntityIterator.
	at com.jetbrains.teamsys.database.impl.iterate.EntityIteratorBase.checkDisposed(EntityIteratorBase.java:182)
	at com.jetbrains.teamsys.database.impl.iterate.EntityIteratorBase.hasNext(EntityIteratorBase.java:63)
	at com.jetbrains.teamsys.database.impl.iterate.SortIterable$NonStableSortIterator.hasNextImpl(SortIterable.java:215)
	at com.jetbrains.teamsys.database.impl.iterate.EntityIteratorFixingDecorator.hasNextImpl(EntityIteratorFixingDecorator.java:26)
	at com.jetbrains.teamsys.database.impl.iterate.SkipEntityIterable$1.hasNextImpl(SkipEntityIterable.java:37)
	at com.jetbrains.teamsys.database.impl.iterate.EntityIteratorBase.hasNext(EntityIteratorBase.java:64)
	at com.jetbrains.teamsys.dnq.database.PersistentEntityIteratorWrapper.hasNext(PersistentEntityIteratorWrapper.java:21)
	at jetbrains.charisma.smartui.comments.Comments_HtmlTemplateComponent.renderTemplate(Comments_HtmlTemplateComponent.java:214)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.renderTemplate(TemplateComponent.java:544)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.render(TemplateComponent.java:458)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.getRefreshContent(TemplateComponent.java:491)
	at jetbrains.mps.webr.runtime.component.HtmlTemplate$1.generateScript(HtmlTemplate.java:33)
	at webr.framework.runtime.response.CommandResponseAction.generateScript(CommandResponseAction.java:17)
	at webr.framework.runtime.response.JsCommandResponse.doGenerateScript(JsCommandResponse.java:64)
	at webr.framework.runtime.response.JsCommandResponse.generateContent(JsCommandResponse.java:43)
	at webr.framework.runtime.response.JsCommandResponse.prebuildContent(JsCommandResponse.java:54)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:636)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:616)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:616)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:616)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:616)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:616)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateComponent.prebuildCompositeCommandsContent(TemplateComponent.java:616)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateActionController.processAjaxCommand(TemplateActionController.java:131)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateActionController.handleEventImpl(TemplateActionController.java:118)
	at jetbrains.mps.webr.runtime.templateComponent.TemplateActionController.handleEvent(TemplateActionController.java:101)
	at jetbrains.mps.webr.runtime.requestProcessor.EventRequestProcessor.processRequest(EventRequestProcessor.java:75)
	at jetbrains.mps.webr.runtime.servlet.MainServlet.processRequest(MainServlet.java:198)
	at jetbrains.mps.webr.runtime.servlet.MainServlet.doGet(MainServlet.java:93)
	at jetbrains.mps.webr.runtime.servlet.MainServlet.doPost(MainServlet.java:167)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at jetbrains.mps.webr.runtime.filter.QueryParameterFilter.doFilter(QueryParameterFilter.java:25)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.eclipse.jetty.continuation.ContinuationFilter.doFilter(ContinuationFilter.java:92)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.eclipse.jetty.servlets.UserAgentFilter.doFilter(UserAgentFilter.java:77)
	at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:133)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:679)