[XeTeX] accessing ligatures in CMU Serif

[Pablo Rodríguez]

Hi there,

I have just discovered that XeTeX is not able to access the ff, fi, fl
ligatures in the CM Unicode fonts (http://cm-unicode.sf.net/).

The tags are defined, but for default script and default language. I
guess this is wrong. Should they be defined for Latin script and default
language instead?

Thanks for your help,


Pablo