luaotfload / bidi: direction in some boxes seems to be wrong

[u-fischer]

\input luaotfload.sty

\def\artext{الإشارات برهن بتاريخ كان مخطئًا}

\font\test="FreeSerif:mode=node;script=arab;+init;+medi;+fina;+rlig;language=DFLT;+tlig;"
\test \pardir TRT \pagedir TRT \bodydir TRT \mathdir TRT

\hbox{\textdir TRT \artext}

\hbox{\artext}


\bye

compiled with CHANGED luaotfload-init 2018-07-31 and fontloader-reference-2018-07-27.lua.

A similar example compiled with a luatex-plain format in a context minimals doesn't show this problem:

\def\artext{الإشارات برهن بتاريخ كان مخطئًا}

\font\test="FreeSerif:mode=node;script=arab;+init;+medi;+fina;+rlig;language=DFLT;+tlig;"
\test \pardir TRT \pagedir TRT \bodydir TRT \mathdir TRT

\hbox{\textdir TRT \artext}

\hbox{\artext}


\bye

So it looks as if something in the luaotfload wrapper is resetting the textdir in such boxes.

[u-fischer]

fixed with commit f9fb33e