[luatex] Misplaced letter

[Hans Hagen]

On 7/25/2018 11:53 PM, Ulrike Fischer wrote:

>>> does it still panic if two object are written?
> 
>> i don't know .. i've never done that .. but i would not be surprised as
>> one can mess up in many ways (and adding all kind of checks for what are
>> programming errors at the lua end
> 
> Well I didn't do it by purpose and it wasn't at the lua end

i changed the error to:

! error:  (pdf backend): scheduled object is already used

so we still quit as we do with other errors, but with a less dramatic 
PANIC message.

(fwiw, we have lots of different warnings and errors than pdftex if only 
because the backend code evolves differently)

Hans
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