I suggest that you change the behavior of date fields when storing a document.
On the current behavior, on starting filling "DD", it automatically fills "MM/YYYY" with the current month and year. Awesome, don't change that.
But if by mistake we fill "15/11/201" (instead of "15/11/2021"), we change the line, then come back on the date field, delete all the value and start filling with "15", it automatically completes with the previous wrong information "11/201" instead of the initial behavior (current month and year).