Sorry if this is FAQ, but can you please point me to where I should go?

I'm using TextMate version 2.0-alpha.9561, but this issue persists for more than a year and Googling didn't give me any resolution yet.

Simply, it doesn't fold/unfold for YAML file. In 'Edit Bundles', 'Settings' doesn't include 'Folding' while other bundles such as XML does.

I guess foldingStopMarker might be wrong, but don't know if it's really used since it doesn't show up in 'Edit Budles / Settings'.

Thanks in advance,

Toru