gdatetime values out of range

[Andrea Zagli <azagli libero it>]

is it normal that if i pass values out of range to function  
g_date_time_new_local it returns a valida date?

glib 2.50.3 debian sid

try this code: it returns 2017-03-02, instead i expected NULL


#include <glib.h>

int
main (int argc, char *argv[])
{
        GDateTime *gdt;
        gchar *str;

        gdt = g_date_time_new_local (2017,
                                     2,
                                     30,
                                     0,
                                     0,
                                     0.0);

        str = g_date_time_format (gdt, "%F");

        g_message ("%s", str);

        return 0;
}