QtQuick controls crash when rendered in an OpenGL 4.1 QQuickView

QtQuick controls (at least TextView and RadioButton) cause a crash when rendering in a specialised QQuickView that renders OpenGL 4.1 graphics.

This is reproducible by modifying the 'Squircle' demo to use opengl 4.1 (and adjust the shaders to use 'in'/'out', and add a VBO) then add a TextField to the QML file

http://pastebin.com/yhfm5VSY