Headline date changes when changing month which might be missleading

[ymombrun]

Hello,

It seems that the headline title button that contains a display date is sometimes misleading, when using the mtx-calendar to let user select.

Step to reproduce:

• Click on a day to select a date --> the day is colored and the headline display the date, for instance "Thu, Mar 13".
• Move to the next month --> the headline now displays "Sun, Apr 13" ==> strange ? but the selected is OK and remain the same.

I'm wondering if it's a bug (i.e. the headline displays the picked day, but uses currently displayed month instead of simply display the selected date) or a choice.
And if it's a choice, is-it possible to override this behavior ?

Thanks in advance