Default subtitle selection is wrong

[yyoyo]

When you play a mkv file with subtitle included, the default of the subtitle button is not the good one.

I tried with an mkv file with French subtitle.

Step to reproduce:
1. Launch Elisa and play the file
2. The file starts with the French subtitles
3. press the subtitle button in the player

Expected result:
1. The subtitle are disabled

Current result:
1. the first click set the selection to french subtitle, so nothing happen, you have to press a second time to disable subtitle.