initialize-with = ". " (dot space)

cuixiaofei

When initialize-with is set to ". " (note: dot and space), how does CSL override this for the initials right before delimiter? e.g. in "American Psychological Association" style

Einstein A. B., Newton, I. M.,
vs
Einstein A. B. , Newton, I. M. , (note, space before comma)

Thanks.