Asking to save changes after picking a date

Hi, everyone.

I just created a custom tabular form with a date field (and a few other ones).

I just made all that configuration to enable a calendar: key-listval trigger's code and properties and field's properties.

Everything works perfectly, except for the fact the form asks me to save changes after i pick a date.

It is a database field, but there is no validation after the date has been picked. The only code related to the field is the one that shows up the calendar, ie, "calendar.show;".

I've been looking for solution for the past couple of days, so i'm asking for help.