[NTG-context] latest beta

Hi, the following test file gives an error with the latest beta: \setupbodyfont[gentium,12pt] \starttext \buildtextaccent\greekdasia\greekalphamacron \stoptext it works with a somewhat older one (2013.12.30). The error is ! Missing number, treated as zero. system > tex > error on line 5 in file /tmp/test.tex: Missing number, treated as zero ... ... <to be read again> \relax \buildtextaccent ...umber \b_enco_accent )}\relax \ifcase \scratchcounter \e... l.5 \buildtextaccent\greekdasia\greekalphamacron I thought this pointed to enco-ini.mkiv, but the file is unchanged between these two versions, so I'm a bit baffled. All best Thomas