Formulating a concise search query for this question proved difficult, so I apologize if this has been addressed before.
To quote one of Till's comments on the bugtracker:
If you want to lock the options of a website so that the client cant change them, then create the website while you are logged in as admin user and not as client. All options that you select then are preserved and cant be changed by the client.
Is there any means by which to reverse this process?
In other words, if I create a website while logged in as an Administrator, and later decide that I want the client to be able to change all aspects of the site, is there any way to "pass control back to the client"?
Is this "administrator locking" behavior controlled only by the `web_domain`.`sys_userid` value in the database?