If \thinrule is used in \margintext, context gives error. \hairline works fine.


Details: ConTeXt  ver: 2013.01.10 01:04 MKIV  fmt: 2013.1.13

Error Message:
! Undefined control sequence.

system          > tex > error on line 2 in file a.tex: Undefined control sequence ...

1     \starttext
2 >>  \margintext{\thinrule A margintext with thinrule.}
3     %\margintext{\hairline A margintext with hairline.}
4     \stoptext
5    


\thinrule ->\strut \bgroup \edef \p_height
                                           {\directthinrulesparameter \c!hei...
<argument> \thinrule
                     A margintext with thinrule.
\doifelsenothing #1->\edef \m_syst_string_one {#1
                                                 }\ifx \m_syst_string_one \e...
\typo_margins_data_yes_indeed ...felsenothing {#3}
                                                  \donefalse \donetrue \ifdo...
l.2 ...text{\thinrule A margintext with thinrule.}


*MWE*

\starttext   
%\margintext{\thinrule A margintext with thinrule.}        
\margintext{\hairline A margintext with hairline.}         
\stoptext