Date picker with multiple property does not save the value when the "Plus" or a reorder button is clicked

Prerequisite - A document type, with date field property multiple on.

Steps to reproduce the issue:
1. Login to CMS
2. Go to documents and create a new document based on above document type
3. Have some value on Date field (do not have a default value)
4. Click on + button to add another date field

Now the value entered in previous date field resets (Unexpected)
Expected - The value of the fields remain unchanged during any operation until save button is clicked.

The date picker also does not save when the reorder buttons (up/down) are clicked in case the field is multiple and orderable.