indentation is not applied anymore to the first block.
%%%% TYPESET with Mark IV %%%
\enableregime[utf]
\mainlanguage[it]
\language[it]
\setupcolors[state=start]
\definepapersize[ZaffiriBook][width=130mm,height=205mm]
\setuppapersize[ZaffiriBook, portrait][ZaffiriBook, portrait]
\setuppagenumber[state=stop]
\setuppagenumbering[location={footer, margin}]
\setupindenting[yes, medium]
\setupheads[indentnext=yes]
\setuptyping
[before={\setupbodyfont[6pt]},
after={\setupbodyfont[9pt]}]
\usetypescript[palatino]
\setupbodyfont[palatino,9pt]
\setupfootnotes[way=bysection, numberconversion=romannumerals]
\defineparagraphs
[mypar][n=3,before={\blank},after={\blank}]
\setupparagraphs
[mypar][1][width=.3\textwidth,style=bold]
\setupparagraphs
[mypar][2][width=.4\textwidth]
\starttext