[luatex] luatex and EB Garamond Ligatures

[Jan Klever]

Hello,

running the following code with luatex (format plain, not latex), I get 
ligatures for italic but *not* for regular text. What am I missing?

$ luatex --version
This is LuaTeX, Version beta-0.79.1 (TeX Live 2014) (rev 4971)

$ otfinfo -v EBGaramond*
EBGaramond12-Italic.otf:Version 0.016+
EBGaramond12-Regular.otf:Version 0.016+

----8<----
\input luatex-basics
\input luatex-fonts

\font\ebgaramondregular = name:ebgaramond12regular:+liga at 12pt
\font\ebgaramonditalic  = name:ebgaramond12italic:+liga at 12pt

\ebgaramondregular
fi, ff, ffi

\ebgaramonditalic
fi, ff, ffi

\bye
---->8----

Regards
Jan