I think you sent it to me some time ago, because I lost it. I will look at my email. Also, I described the needed behaviour in this post in 2012:
http://www.weberp.org/forum/showthread.php?tid=234
Nevertheless. the current behaviour is even more complicated, after some experiments:
if there is a preferred dealer and lead time is set, PO is scheduled at WO end date - lead time.
This also does not feel right, because the lead time is needed at the dealer. So I would still receive the component at WO end, but at least not after WO end. In practise, this is still not really usable.
Klaus