[luatex] nodes after \mskip disappear

[Hironori KITAGAWA]

Hello all,

With LuaTeX 0.95.0 (r5908), nodes after \mskip disappear
when a math list is converted to a horizontal list.
And, \mskip is not converted to normal glue.

The following is an example:

$ cat mlist.tex
  $A\mskip18mu B$%
  \tracingonline1 \showboxbreadth\maxdimen \showlists
  \end
$ luatex mlist
This is LuaTeX, Version beta-0.95.0 (TeX Live 2016) 
 restricted system commands enabled.
(./mlist.tex

### horizontal mode entered at line 1
  (...)
\hbox(0.0+0.0)x20.0, direction TLT
\mathon
\teni A
\glue(\mskip) 18.0mu
\mathoff
spacefactor 1000
### vertical mode entered at line 0
prevdepth ignored

! OK.
l.2 ...ngonline1 \showboxbreadth\maxdimen \showlists


Regards
Hironori KITAGAWA <h_kitagawa2001 at yahoo.co.jp>