Hi.
I'm running this on an english install of MW 1.17.3 with SMW 1.8alpha.
If I use the standard SMW date input:
{{{field|Start Date|input type=Date|mandatory}}}
Then the page create always fails with the error: "The start date is missing."
If I use the SFI date picker:
{{{field|Start Date|mandatory|input type=datepicker |disable input field |show reset button |show week numbers |week start=1 |highlight days of week=0 |date format=DD dd MM yy}}}
Then it works and the pages get created. I suspect this is down to some low level date format issue.
I wanted to switch to the simple date entry because there is a nasty problem with SFI. When you edit the page, the date is zapped back to the current date. Caught between a rock and a hard place!