[sldev] Region crossing problem + patch

[Nicholaz Beresford]

The way you describe that (race condition, region crossing, objects 
becoming recreated) reminds me of the good ole asstachments (VWR-374), 
where attachments had still been attached but lost a bunch of the 
information around them.

So whoever looks into that might also want to look at the code from the 
VWR-374 patch (at least if those situations are accompanied by a 
"Attempted to attach object where an attachment already exists!" message 
in the log).


Nick