[XeTeX] Runaway argument in babel and longtable?

[Ján Zahornadský]

Hi!

I have this script creating a long table which have been working until
some of the recent changes. Now it's producing the following output:

Runaway argument?
! Forbidden control sequence found while scanning use of
\language at active@arg".
<inserted text>
                \par
l.17 餐 &
           jídlo \tabularnewline

I have been trying to google the issue up a little, but with no success.
Does anyone around here have an idea where it might come from? Attached
is the (reduced) input to still produce this error.

Thanks everyone in advance!
Jan
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