redirect to login screen when trying to export with expired session

The user sees

HTTP Status 500 - User doesn't have access to project

type Exception report

message User doesn't have access to project

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: User doesn't have access to project
        javax.faces.webapp.FacesServlet.service(FacesServlet.java:606)
        org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
        org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)

[...]

when clicking on Export in the Info tab when the session expired.

Instead, the user should be redirected to the login screen.