Is this hack ok?

Is this hack ok?


I was getting a problem with drag/drop feature, IE7 and jQuery 1.3.
The problem is, it's ok to drag and drop the object the first time
after page load, but the second time, i've got an "unspecified
error" (on IE6/7 only)
I've done some debug with Visual Studio and found that the problem is
located around the 4176th line
Here is a post I found with a fix/hack to work around the problem:
http://groups.google.com/group/jquery-dev/browse_thread/thread/9c54083394a7df30/d4f12e76c0c347b5
I made the fix in my code and it works but I want to ask the experts
if this is a bad way to fix this issue. If it isn't can we get this
fix into the development tree?