Here is a strace-output. Strace was attached to an running e-d-s process, which was started via evolution (from office-menu). It started showing calendar. Then attached strace to pid, then opened evo back with calendar component, taking a look to the next month, then closing and exiting session. Afterwards I waited a bit more than a minute and then killed e-d-s, which was still running after logout.
Here is a strace-output. Strace was attached to an running e-d-s process, which was started via evolution (from office-menu). It started showing calendar. Then attached strace to pid, then opened evo back with calendar component, taking a look to the next month, then closing and exiting session. Afterwards I waited a bit more than a minute and then killed e-d-s, which was still running after logout.