closes#8781
- when the ownership get's transferred, the id of the new owner is not '1' anymore
- we previously added a database rule, which signalises if the blog is setup or not, see 827aa15757 (diff-7a2fe80302d7d6bf67f97cdccef1f71fR542)
- this database rule is based on the owner id being '1', which is wrong when you transfer ownership
- we should keep in mind, that the owner id being '1' is only the default Ghost setup, but it can change
- blog is setup if the owner is locked