A person the picker offers. Showing the row sends nothing; openThread opens the thread screen
with them, and the message goes to that conversation. A lookup that answers no conversation is
DirectThreadNotFoundByParticipantsError. The inbox sequence the lookup reports is session state
(MobileSessionState.directInboxSeqId), read by the thread, so neither the picker nor the row
carries a copy of it.
A person the picker offers. Showing the row sends nothing;
openThreadopens the thread screen with them, and the message goes to that conversation. A lookup that answers no conversation isDirectThreadNotFoundByParticipantsError. The inbox sequence the lookup reports is session state (MobileSessionState.directInboxSeqId), read by the thread, so neither the picker nor the row carries a copy of it.