[NTG-context] \triangledown placed too low in Palatino

I just noticed that the gradient operator (\triangledown) ends up too low when using Palatino: \setupbodyfont[palatino] \starttext $\triangledown T$ \stoptext It seems about 3pt too low. Without the \setupbodyfont[palatino], the placement is fine. (tested with 2013.05.28 and 2014.03.27 betas) -Sanjoy