This is set through the django admin interface at the moment, the url is
/admin accessible only to the site administrators, go to that url, scroll to sites, click on "example.com" and change to "asksci.com".
Not so convenient, I've retagged your question as the "feature-request" and will remember to make this setting easier to find.
This is a screenshot of our "sites" admin page:
And the site record itself:
Also, it is important that
SITE_ID setting value in your
settings.py is the same as the ID of the intended record in the admin panel:
SITE_ID = 1 #site id is 1 in our case - it is part of url in the above image