unallocated list in triSurface vtk reader (non-critical)
Condition is there to catch cases where the vtkSurfaceFormat returns 0 zones (which should never be the case), but assigns a fall-back value without resizing the list first.
Condition is there to catch cases where the vtkSurfaceFormat returns 0 zones (which should never be the case), but assigns a fall-back value without resizing the list first.