Can't select today's date in Safari 11

Using Web UI in Safari 11:

• Navigate to any document.
• Select the permissions tab.
• Add a new date-based permission.
• Set the From date to today's date.
  => Date not set.
• Set the From date to tomorrow's date.
  => Date is set.
  (See video)

Reproduced in all date-pickers in Web UI in Safari 11.
Not reproduced in FF or Chrome.
Not reproduced in JSF with Safari 11.