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1 Jan
2015
1 Jan
'15
1:57 p.m.
You need
\setuphead[subject][incrementnumber=list]
because when you write „incrementnumber=yes” you tell context to increment the counter for \subject which uses by default the \section counter.
Wolfgang
FYI, I've tried to update the wiki accordingly: http://wiki.contextgarden.net/Table_of_Contents#Including_unnumbered_heads_i... -- Using Opera's revolutionary email client: http://www.opera.com/mail/