string u;
number n=0;
n=size(fieldHistory(key, "Link"));
if (n>0 and resolution=="Duplicate")
{
 string dKey=getElement(fieldHistory(key, "Link"),n - 1); // history
 %dKey%.watchers=addElementIfNotExist(%dKey%.watchers, reporter);
 for (u in watchers)
 {
 %dKey%.watchers=addElementIfNotExist(%dKey%.watchers, u);
 }
}