Shortcut "d" doesn't work as expected on date/time fields
Since 4.2.0, the behaviour of the "d" shortcut for getting current date (aliases are "t" and "n") changed:
1) Enter some date on a date field.
2) Move focus away.
3) Move back, and enter "d".
Expected is current date.
Result is the last date entered on any datetime field on this form.
(issue imported from #M10033)