Directories added to the library are not parsed correctly

[JamesHolson]

When I try to add a directory to the library that contains the special character '{' nothing shows up.

The directory name was "Angus & Julia Stone - A Book Like This (2007) {CD} [FLAC]". If I remove the "{CD}" part it works correctly.

As an experience I created a folder named "{Test" and it gives the following error:

Unknown error happened when initializing the library. Error: error parsing glob '{Test/**/*.{mp3,m4a,flac,ogg,opus,wav,MP3,M4A,FLAC,OGG,OPUS,WAV}': nested alternate groups are not allowed