controlling sweep positions

 From:  noskule
3893.6 In reply to 3893.5 
> Once history updates on the offset curve are enabled, then you will have a chain set up where an edit of the original curve will
> regenerate the offset, and the sweep that uses that offset will also get regenerated as well.

I can reproduce this and works for my so far, but when I move the offset-rail the history breaks and the update don't work anymore. Could this be changed somehow so that the history is still working?