I'm developing a site that will be in English, Dutch, German and French.
The contact form has a date input field, and I'm using the latest Contact Form 7 with the Datepicker extension.
I have created a form for each language, and the calendar popup shows the days and months in the correct language, but the date format specified in the shortcode (date-format:DD_d_MM_YY) only works in the English form. The forms in the other languages completely ignore the date format specification and produce either dd/mm/yy or dd-mm-yy depending on the language.
After trying to work this out for hours, I'm all out of ideas. Any help appreciated.