[luatex] behavior of buildpage_filter ?

[Frank Mittelbach]

Am 10.03.16 um 20:33 schrieb Hans Hagen:
> indeed, this is a known issue and it's on my list to look into that (one
> can check for the location, at least that's what i do as a way out for
> now); we probably need an additional callback but not for the next
> release (as one might need to adapt code due to a break in compatibility)

ok good, so much the better if it is already known. yeah one can program 
around it, even though it is again a bit painful :-)

thanks
frank