When is a "registered" child other than by decent?

[Directive/2004/38/EC]

If a child is "registered" as a British citizen, when are they considered British "otherwise than by decent"? Does it depend on where they were born?

e.g. A British citizen by decent who has a child abroad. The parent meets the residency requirement in the UK, and the child is registered within the first year as a British citizen? Is that by decent?

e.g. A person without ILR in the UK has a child. The adult then gets ILR and applies through MN1? Is that other than by decent?

[vinny]

See also Chapter 20: British citizenship "by descent" and "otherwise than by descent"

e.g. A British citizen by decent who has a child abroad. The parent meets the residency requirement in the UK, and the child is registered within the first year as a British citizen? Is that by decent?

Section 3(2) is by descent.
Section 3(5) is otherwise than by descent.

e.g. A person without ILR in the UK has a child. The adult then gets ILR and applies through MN1? Is that other than by decent?

Section 1(3) is otherwise than by descent.