[1.5.X] Fixed #19506 - Remove 'mysite' prefix in model example.
[1.5.X] Fixed #19506 - Remove 'mysite' prefix in model example.

Thanks Mike O'Connor for the report.

Backport of 52a2588df6 from master

hasadna/django,ccn-2m/django,alx-eu/django,alx-eu/django,alx-eu/django,imtapps/django-imt-fork,ccn-2m/django,hasadna/django,bliti/django-nonrel-1.5,imtapps/django-imt-fork,bliti/django-nonrel-1.5,alx-eu/django,ccn-2m/django,bliti/django-nonrel-1.5,hasadna/django,ccn-2m/django,imtapps/django-imt-fork