[tex-live] Possible bug in texmf-dist/tex/luatex/luaotfload

[Marcus Husar]

Hello,

today I came upon a problem in otfl-node-inj.lua 
(texmf-dist/tex/luatex/luaotfload). My version of LuaTeX is 
beta-0.60.2-2010071218. I'm using texlive pretest at the moment.

Here is some output:
--- snip ---
(./s_articles.tex (./3579.deaf(load: 
/root/.texlive2010/texmf-var/luatex-cache/generic/fonts/otf/temp-fxlb.lua)

LaTeX Font Warning: Font shape `OT1/cmss/bx/' undefined
(Font)              using `OT1/cmss/bx/n' instead on input line 5.

(load: 
/root/.texlive2010/texmf-var/luatex-cache/generic/fonts/otf/temp-fxlri.lua)
error: ./otfl-node-inj.lua:197: attempt to index local 'tm' (a nil value)
--- snap ---

The last line of the following code snippet of otfl-node-inj.lua is line 
197. In my case the local variable tm stays nil. For that reason I get 
problems at line 197.

if has_kerns then -- move outside loop
             local nf, tm = nil, nil
             for n in traverse_id(glyph,head) do
                 if n.subtype < 256 then
                     valid[#valid+1] = n
                     if n.font ~= nf then
			nf = n.font
                         tm = fontdata[nf].marks
                     end
                     mk[n] = tm[n.char]

My problems go away if I do a small modification:

197c197,199
<                     mk[n] = tm[n.char]
---
 >                     if not tm == nil then
 >                         mk[n] = tm[n.char]
 >                     end

Is there a bug in otfl-node-inj.lua or is there a problem on my side?

Regards
Marcus