Page Comparison

string[] assignees;
assignees = addElementIfNotExist(assignees, userFullName(assignee)); 
string[] assigneeHistory = fieldHistory(key, "assignee"); 
for(number i = 1; i < size(assigneeHistory); i = i + 2) {
 string assigneeName = userFullName(getElement(assigneeHistory, i));
 assignees = addElementIfNotExist(assignees, assigneeName); 
}
return assignees;