We often get new leads that turn out to be duplicates of existing leads (i.e. someone who manually filled out a form at a tradeshow is entered into CRM, then may visit our site a week later and be entered again with a different email address). These duplicates are merged with the original lead, but any lead score points earned by the duplicate lead are lost upon merging. We still want to capture any clicking or viewing the duplicate lead has done, and add it to the existing lead score.
What would be the best way to handle this?