[Inf-IT DAVcl] Past-due todos don't immediately show up

I'm using CalDavZAP 0.10.0.5 and right after upgrading from an older version I've noticed that an event that is long past due (last year) but still not completed (still "needing action") is not shown in the todo list - but after a short while (the first auto-reload I assume - about 2 minutes) it does show up without any intervention from me. I confirmed the issue by creating a brand new todo with a future due date (showed up immediately after logging in) which I then modified to have a due date in the past (started showing up with a delay after login, just like the other one). - Attila