Understanding cloning with CLONE


I have cloned a subsite.
Now I have many issues mainly 404 errors by the source subsite.
Only for my curiosity I have searched using "Search and Replace" plugin to check new subsite.
The new subsite (cloned) still has some url's from the source cloned subsite.

I though when cloning a subsite, the new one should not have any kind of sign from the source subsite. Isn't it right?

You can see by the print screen . that some registers still direct to the source subsite.