rem: icalclassify_pre
add: icalproperty* attendee; icalparameter* param; icalclassify_pre;
context: int icalclassify_request_delegate(    struct icalclassify_parts *comp,    struct icalclassify_parts *match,     const char* user){    icalclassify_pre    if (match->c != 0 &&	comp->sequence > match->sequence &&	icalssutil_is_rescheduled(comp->c,match->c)){	rtrn = 1;    }    icalclassify_post}