message: fix incorrect logic in geometry instance postIntersect()
  [ci skip]
diff: @@ -33,13 +33,14 @@ static void GeometryInstance_postIntersect(const GeometryInstance *uniform self,
  instancedGeometry->postIntersect(
  instancedGeometry, parentWorld, dg, ray, flags);
  - cif (flags & DG_COLOR && self->primitiveColors) {
  + cif(flags & DG_COLOR && self->primitiveColors)
  + {
  dg.color = self->primitiveColors[ray.primID];
  }
  - cif (instancedGeometry->materialList) {
  - dg.material =
  - instancedGeometry->materialList[dg.materialID < 0 ? 0 : dg.materialID];
  + cif(self->materialList)
  + {
  + dg.material = self->materialList[dg.materialID < 0 ? 0 : dg.materialID];
  }
  dg.Ns = xfmVector(transposed(self->rcp_xfm.l), dg.Ns);
  @@ -49,7 +50,8 @@ static void GeometryInstance_postIntersect(const GeometryInstance *uniform self,
  dg.epsilon *= max(abs(self->xfm.l.vx.x),
  max(abs(self->xfm.l.vy.y), abs(self->xfm.l.vz.z)));
  - cif (flags & DG_TANGENTS) {
  + cif(flags & DG_TANGENTS)
  + {
  dg.dPds = xfmVector(self->xfm, dg.dPds);
  dg.dPdt = xfmVector(self->xfm, dg.dPdt);
  }
  