Cell type dhxCalendarA

I have a grid with two of columns of type dhxCalendarA. The problem is that when i double click on the cell of type dhxCalendarA I enter into the edit mode of the cell and even when I dont make any change to the date the row nativeeditor status is changed to updated. How can i avoid this?

Problem confirmed and fixed - please use attached js file instead of original one.
dhtmlxgrid_excell_dhxcalendar.zip (1.78 KB)