Whats up with DateField after 6.8.9 ?

Setting null to the value of a DateField does not show it empty anymore?

I quickly looked through the changes in 6.8.10 and none of them should affect DateField as far as I can tell.

Make sure you have recompiled your widgetset and are using the new one - most likely you are using an old version of the widgetset with the newer Vaadin version.