Amy exiles a Woodland Changeling with Soul Separator. What creature types does the 1/1 token have? For reference:

“CR 706.9d: When applying a copy effect that doesn't copy a certain characteristic, retains an original value for a certain characteristic, or modifies the final value of a certain characteristic, any characteristic-defining ability (see rule 604.3) of the object being copied that defines that characteristic is not copied…”

Is this an example of a copy effect that “modifies the final value of a certain characteristic”? If not, what type of effect is that clause referring to?