Locking Issues - Part 2

System

So I've added the lock="t" to my Group tasks, and now after someone tries to take ownership, it hangs saying "Trying to obtain lock" but doesn't actually get the lock.

I've found a thread here mentioning that this is a bug:
http://devnet.interwoven.com/forums/cgi-bin/showthreaded.pl?Cat=&Board=DOWNLOADS_WORKFLOWS&Number=7694&page=&view=&sb=&o=&vc=1#Post7694

Any idea as to whether this has been fixed or if there is a workaround? I've tried adding unlock tasks before the group tasks, but it still doesn't work.

TIA,
Ronnie