Finds the one local person a partner's subject names through the relationship: an iss_sub (or, from a signals-only partner, an opaque) subject by its link, an email only where the relationship allows it.
iss_sub
opaque
email
the relationship
the SET's subject
{ username, ... }, with why when it names nobody
{ username, ... }
why
Finds the one local person a partner's subject names through the relationship: an
iss_sub(or, from a signals-only partner, anopaque) subject by its link, anemailonly where the relationship allows it.