Bug#823462: flint: FTBFS in testing with LaTeX error (i.e. please make an upload for unstable)

[Santiago Vila]

Package: src:flint
Version: 2.5.2-3
Severity: serious

Dear maintainer: This package FTBFS in stretch:

-----------------------------------------------------------
! Argument of \zap at to@space has an extra }.
<inserted text>
                \par
l.4164         \left
                    |\frac{a_1}{a_n}\right|^{\frac{1}{n-1}},
?
! Emergency stop.
<inserted text>
                \par
l.4164         \left
                    |\frac{a_1}{a_n}\right|^{\frac{1}{n-1}},
!  ==> Fatal error occurred, no output PDF file produced!
Transcript written on flint-manual.log.
-----------------------------------------------------------

Please make an upload for unstable to fix the bug in unstable
(as I see that it's already fixed in experimental).

This is one of the packages I check for "dpkg-buildpackage -A",
and I would like to help with "unreproducible" Bug #818990, but
this is currently impossible for me because I can't get past the
LaTeX error (I only build on testing and sometimes on unstable).

Thanks.