bugfix in calculation of fastUpdateMode, as eval_trees are precalculated one has to disable the fast mode of creases changed
bugfix in calculation of fastUpdateMode, as eval_trees are precalculated one has to disable the fast mode of creases changed

Sjoerdie/embree,embree/embree,Sjoerdie/embree,embree/embree,Sjoerdie/embree,Sjoerdie/embree,embree/embree,embree/embree