widetilde not working in ConTeXt

[adityam]

Hi,

In ConTeXt \widetilde does not scale with the size of the glyph. For example, using context 2016.09.09 the following test file:

\usetypescriptfile[euler]
\definetypeface[mainfont][rm][serif][palatino][default]
\definetypeface[mainfont][mm][math] [pagellaovereuler][default]

\setupbodyfont[mainfont,12pt]
\appendtoks \rm \to \everymathematics

\starttext
$\tilde M$, $\widetilde M$, $\widetilde{ab}$
\stoptext

I get the following:

Any hints on whether this is a bug with the font or context mappings?

[khaledhosny]

The font does not have wider tildes.