Im trying to create a form that has pre filled date fields. I tried using ISO 8061 date formats that get pre filled correctly and show the date picker correctly. But when I do not make any changes (do not pick any other date via date picker) and leave in the pre filled date while submitting, I get an error. Looking at the logs the ISO 8061 default value that I put in as the default value does not get correctly converted into long value. This works correctly if I choose any other date via the date picker.