DVD-Subtitles in matroska container converted by ffmpeg won't disappear playing with vlc

I uploaded two files: First one: 00001.ts is a short TV-Record and plays fine with vlc, The DVB-Subtitles are shown correctly to my opinion.

Now I want to leave out one audio track and repack the video into matroska container using ffmpeg like this:

ffmpeg -i 00001.ts -map 0:0 -map 0:2 -map 0:3 -vcodec copy -acodec copy -scodec dvdsub 00001.mkv

The resulting 2nd file which I uploaded plays fine again, but subtitles just seem to be put one over another and do not disappear at lest when the next is to be shown.

http://streams.videolan.org/issues/10667/

Probably this isn't the fault of vlc at all but ffmpeg, at least (s)mplayer shows the sub of the mkv-file correctly to my opinion as well.