I realize that other forms of this question have been asked and answered (and marked as duplicate) here before.
However, I haven't seen a question that responds to my particular use case, which is to move a site to a new domain AND move it's content to a subdirectory on that new domain.
For example, I want oldsite.com to point to newsite.com/oldsite.
I've placed the 301 redirect on the old site to redirect to the new domain and subfolder, but the Change of Address tool requires that the redirect be to the root of the new domain.
Is the best practice here to temporarily change the redirect to point to the root, just to get past step 2, then change it back, or is there another option?