Fix #119992: Object transform ignored for shrinkwrap and flat shading

the transform was always ignored for face normals since b4b224dc08.

source/blender/blenkernel/intern/shrinkwrap.cc

@@ -1221,6 +1221,9 @@ void BKE_shrinkwrap_compute_smooth_normal(const ShrinkwrapTreeData *tree,
   /* Use the face normal if flat. */
   else if (!tree->face_normals.is_empty()) {
     copy_v3_v3(r_no, tree->face_normals[face_i]);
+    if (transform) {
+      BLI_space_transform_invert_normal(transform, r_no);
+    }
   }
   /* Finally fallback to the corner_tris normal. */
   else {