[NTG-context] issue with agr loaded patterns

Dear list, I have the following sample: \setupbodyfont[dejavu] \mainlanguage[agr] \setuplanguage[es][patterns={es, agr}] \starttext \startTEXpage[offset=1em] \hyphenatedword{πράγματα}\\ \es\hyphenatedword{πρᾶγματα}\\ \hyphenatedword{τέκνον}\\ \stopTEXpage \stoptext On the first line, I get the hyphenated word πράγ-μα-τα. But on the second line (with I thought they were the same paterns), I get the same word hyphenated as πρά-γμα-τα. What am I missing here? I would expect the same results. BTW, shouldn’t be τέκνον hyphenated as τέκ-νον? Many thanks for your help, Pablo