Fix for disabling / re-enabling stackPrefetch
Fix for disabling / re-enabling stackPrefetch

leonardorame/cornerstoneTools,HorizonPlatform/cornerstoneTools,swederik/cornerstoneTools,swederik/cornerstoneTools,HorizonPlatform/cornerstoneTools,chafey/cornerstoneTools,leonardorame/cornerstoneTools,cornerstonejs/cornerstoneTools,google/cornerstoneTools,cornerstonejs/cornerstoneTools,cornerstonejs/cornerstoneTools,google/cornerstoneTools