[luatex] the son of trouble in the output routine.

[Paul Isambert]

Thanks for the repair!

Selon Taco Hoekwater <taco at elvenkind.com>:

> Taco Hoekwater wrote:
> > Paul Isambert wrote:
> >> Damn. I forgot to mention one important thing: if you turn the 4-line
> >> paragraph into a 5-line one, i.e. if you kill the widow, everything
> >> works fine (the title appears after the paragraph, etc.)
> >> Paul
> >
> > Thanks for the report, I will look into this.
>
> Found and fixed (took me a long time to find it). The bug was introduced
> during commit #3417: * Some experimental tweaking of buildpage_filter.
>
> What this experiment actually did was: it split the adding of a new
> (line) box to the vertical list into separate steps for
>
> a. the already waiting contributions
> b. any \adjust pre stuff from the box
> c. the box
> d. any \adjust stuff from the box
>
> This split introduced extra calls to the page builder, which then
> resulted in the bug. So, the experiment is now reverted.
>
> Best wishes,
> Taco
>