Dear ConTeXt folks,


having upgraded

        ConTeXt  ver: 2011.10.14 22:47 MKIV  fmt: 2011.10.15  int: english/english.

to

        ConTeXt  ver: 2011.11.23 18:58 MKIV  fmt: 2011.11.24  int: english/english

With

        \starttext
        	\placeformula
        	\startformula
        		A^\prime
        	\stopformula
        \stoptext

I get the following error.

        fonts           > fallback modern rm 12pt is loaded
        ! Missing { inserted.
        
        system          > tex > error on line 4 in file exponent-regression.tex: Missing { inserted ...
        
        1     \starttext
        2     	\placeformula
        3     	\startformula
        4 >>  		A^\prime
        5     	\stopformula
        6     \stoptext
        7     
        
        <to be read again> 
                           ^
        \prime ...char \textfont \zerocount "FE325\relax ^
                                                          \bgroup \expandafter \dodo...
        l.4 		A^\prime
                      
        ?

As a workaround `A^{\prime}` can be used.


Thanks,

Paul