bug #4251 still not fixed in repository

Regarding this issue:
http://dev.jqueryui.com/ticket/4251
I had the same problem and I applied the solution to the (minified)
code, changing:
if(h.state==0)
to:
if(h.state==0||h.start.constructor!=Array||h.end.constructor!=Array)
which solved the issue.
How come this bug is still in the repository? The bug was closed 6
weeks ago, shouldn't it be solved?
Cheers,
Adam