[luatex] LuaLaTeX 2016/02/01 doesn't work

[Hironobu Yamashita]

Hello,

Today I updated TeX Live 2015 using tlmgr.
Soon after that, I found that LuaLaTeX no longer
works.

MWE is:
\documentclass{article}
\begin{document}
\[
F(x)=a+b+c
\]
\end{document}
and compiling with lualatex (beta-0.80.0) with format
LaTeX2e <2016/02/01>, all the math symbols (such as
`=' and `+') are broken.

After I recovered LaTeX2e <2015/10/01> patch level 2
and regenerated lualatex.fmt, everything seems to be ok.
The release of LaTeX2e <2016/02/01> for supporting
LuaTeX beta-0.87.0 can be too fast...

----
Hironobu Yamashita