[fixed] Lightwave export crash

[ScifiX]

The following file cannot be exported in LWO format:
https://drive.google.com/open?id=0Bx868V...2w2Vld6WEE

Export works fine in .OBJ format. Here is an output of the log window :

Exporter crashed: function_clause

[{lists,zip3,
[[<<0,210>>,<<0,212>>,<<0,213>>,<<0,211>>],
[<<0,249>>,<<0,249>>,<<0,249>>,<<0,249>>],
[]],
[{file,"lists.erl"},{line,417}]},
{wpc_lwo,zip_lists_3,3,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,245}]},
{wpc_lwo,'-make_vmad_uv2/2-fun-0-',2,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,267}]},
{lists,map,2,[{file,"lists.erl"},{line,1239}]},
{lists,map,2,[{file,"lists.erl"},{line,1239}]},
{wpc_lwo,make_vmad_uv,1,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,254}]},
{wpc_lwo,make_object,3,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,99}]},
{wpc_lwo,'-make_objects_chunk/2-lc$^0/1-0-',2,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,79}]},
{wpc_lwo,'-make_objects_chunk/2-lc$^0/1-0-',2,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,79}]},
{wpc_lwo,make_lwo,1,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,69}]},
{wpc_lwo,export,2,
[{file,"c:/Users/familjen/src/wings/plugins_src/import_export/wpc_lwo.erl"},
{line,58}]},
{wings_export,export,4,[{file,[...]},{line,...}]},
{wings_file,'-export_filename_1/2-fun-0-',3,[{file,...},{...}]},
{wings_develop,time_command,2,[{...}|...]},
{wings_plugin,command,3,[...]},
{wings,raw_command_1,3,...},
{wings,raw_command,...},
{wings_wm,...},
{...}|...]


Thanks in advance for your support!