- fix memory leak in mesh_strip_loose_polysloops(), occurred during 3ds import.

- updating normals in py/api's mesh.transform() wasn't working and gave annoying print, disable this, script authors can call calc_normals explicitly if they need.

source/blender/blenkernel/intern/mesh.c

@@ -1058,7 +1058,7 @@ void mesh_strip_loose_polysloops(Mesh *me)
 	MLoop *l;
 	int a, b;
 	/* New loops idx! */
-	int *new_idx = MEM_mallocN(sizeof(int) * me->totloop, "strip_loose_polysloops old2new idx mapping for polys.");
+	int *new_idx = MEM_mallocN(sizeof(int) * me->totloop, __func__);
 
 	for (a = b = 0, p = me->mpoly; a < me->totpoly; a++, p++) {
 		int invalid = FALSE;
@@ -1119,6 +1119,8 @@ void mesh_strip_loose_polysloops(Mesh *me)
 	for (a = 0, p = me->mpoly; a < me->totpoly; a++, p++) {
 		p->loopstart = new_idx[p->loopstart];
 	}
+
+	MEM_freeN(new_idx);
 }
 
 void mesh_strip_loose_edges(Mesh *me)

source/blender/editors/mesh/mesh_data.c

@@ -896,7 +896,7 @@ void ED_mesh_transform(Mesh *me, float *mat)
 	for (i = 0; i < me->totvert; i++, mvert++)
 		mul_m4_v3((float (*)[4])mat, mvert->co);
 
-	mesh_calc_normals_mapping(me->mvert, me->totvert, me->mloop, me->mpoly, me->totloop, me->totpoly, NULL, NULL, 0, NULL, NULL);
+	/* don't update normals, caller can do this explicitly */
 }
 
 static void mesh_add_edges(Mesh *mesh, int len)