Fix issue w/ transform orientation & vert selection

Accessing selected verts as an array failed when only
some of the selected verts were in the selection-history.

source/blender/editors/transform/transform_orientations.c

@@ -544,7 +544,7 @@ static unsigned int bm_mesh_elems_select_get_n__internal(
 		if (i == 0) {
 			/* pass */
 		}
-		else {
+		else if (i == n) {
 			return i;
 		}
 	}