  In this short note I construct a sequence of conformal diffeomorphisms $f_n$
from the $d$-dimensional unit ball to itself that converges weakly to a
constant in $W^{1,d}$. This is a simpler example than the ones that commonly
appear in the literature for the discontinuity of the functional $f\mapsto \int
\det \nabla f$ in the weak $W^{1,d}$-topology, and shows that this
discontinuity is not due to shear or failure of injectivity. It is also a
minimizing sequence of the $W^{1,d}$ norm among functions of a given volume of
the image.
