Comment 11 for bug 186262

You might want to consider searching for and displaying the duplicates asynchronously and poppnig them into the form when they are found. I don't know if we will be able to remove all the edge cases in this complex search, but if AJAX was used problems with the search don't break the work flow. The entire page will load faster too - if the search is being done explicitly using a slave database, your AJAX requests can be running in parallel on multiple cores on multiple database backends rather than the current serial process.