attached is the result of running latest lmtx on

\definefontfeature[default][default][protrusion=quality,expansion=quality]
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Gauss öppnade med denna studie ett helt nytt fält inom matematiken, det som
handlar om \emph{elliptiska funktioner} och \emph{modulära former}.
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What happens with the space between the characters in "studie", that becomes "s tudie"? The spacing between some other characters are also off (ma tematiken), but not as much as in studie.

/Mikael