[luatex] Incorrect setting of mu sizes with different styles?

[luigi scarso]

On Mon, Jan 12, 2015 at 4:50 PM, Joseph Wright <
joseph.wright at morningstar2.co.uk> wrote:

> Hello all,
>
> With the example
>
>     \setbox0=\hbox{$\mkern18mu$}\message{\the\wd0}
>     \setbox0=\hbox{$\scriptstyle\mkern18mu$}\message{\the\wd0}
>     \bye
>
> pdfTeX gives
>
>     9.99976pt 8.19443pt
>
> whereas LuaTeX gives
>
>     9.99976pt 9.99976pt
>
> which suggests something is not right in terms of the interaction of the
> size of the mu unit with math mode style.
>
> Is this a documented change or a bug?
> --
> Joseph Wright
>

Sorry for delay.
We are seeing it now.

-- 
luigi
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