JSF "View could not be restored" if cookies disabled in browser

A JSF application doesn't work if cookies are disabled in browser on AS7.0.2.Final and latest 7.1.0.Final snapshot. The same WAR works on AS6 and on AS7.0.1.Final.

The generated front page of the app contains `action="/jboss-as-numberguess-nocdi/home.jsf"' attribute in the form element on AS7.0.2, while it does contain `/jboss-as-numberguess-nocdi/home.jsf;jsessionid=835F17A..."' on AS 6.1.0.

Submitting a form in the app returns HTTP 500 and logs the following exception:

15:14:54,932 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/jboss-as-numberguess-nocdi].[Faces Servlet]] (http-localhost.localdomain-127.0.0.1-8080-2) Servlet.service() for servlet Faces Servlet threw exception: javax.faces.application.ViewExpiredException: viewId:/home.jsf - View /home.jsf could not be restored.
at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:205) [jsf-impl-2.1.3-b02-jbossorg-2.jar:2.1.3-SNAPSHOT]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) [jsf-impl-2.1.3-b02-jbossorg-2.jar:2.1.3-SNAPSHOT]
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116) [jsf-impl-2.1.3-b02-jbossorg-2.jar:2.1.3-SNAPSHOT]
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) [jsf-impl-2.1.3-b02-jbossorg-2.jar:2.1.3-SNAPSHOT]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) [jboss-jsf-api_2.1_spec-2.0.0.Beta1.jar:2.0.0.Beta1]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:155) [jboss-as-web-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.3.Final.jar:7.1.0.Alpha2-SNAPSHOT]
at java.lang.Thread.run(Thread.java:636) [:1.6.0_20]