You can clone with
This is an issue in Firefox (latest stable) but not in Safari or Chrome.
With current Delegator release:http://jsfiddle.net/4e8Dw/
Open console too and see how it trips. This is caused by the registered ['focus','blur'] events..
With the december 2011 Delegator release it does not trip:http://jsfiddle.net/4e8Dw/1/
I think this has to do with the "adding support for custom events in Delegator" because that is the only difference in the releases, but I have not been able to check out the source yet to try and find the problem/solution.
PS > also tested with MT 1.4 release, but it has the same results
this ticket is 2 yrs old and I apologize for letting it sit here. I just tested it and seems to work now:
http://jsfiddle.net/Ghe64/ (updated paths)