[Dev-luatex] \lastnodetype not working as expected in LuaTeX

[Frank Mittelbach]

Hans,

my fluency in the linebreak algorithm is a little bit rusty. Are you 
saying that there are other points and stuff in that space that is not 
updated or more on the page builder side of the house?

Or asked differently is there more that needs updating to make my little 
example work, and if so could that be already done through a workaround 
like I did with

tex.nest[tex.nest.ptr].tail = node.tail(head)

or would it absolutely need fixes in the program itself?

thanks
frank