indicator date-time does not respect locale

[Zakhar]

In to the bug reported here:
https://bugs.launchpad.net/ubuntu/+source/indicator-datetime/+bug/1664067

indicator-datetime was apparently aware of the locale depending of the options chosen.

Now it does not at all apply the locale, whatever the option chosen.

Environment:
Ubuntu 18.04.1 amd64 + Unity (ubuntu-unity-desktop)

How to reproduce:
Do a fresh install with a locale where the day is before the month (French in my case, locale for dates is: dd/mm/yyyy)

Add the date in the applet, see that it is displayed: mm/dd instead of dd/mm (as the locale says)
Same whatever the options: with or without the year, with or without the week day name.

Do you need an apport-bug or some other kind of information?