app/assets/stylesheets/grid/_shift.scss in neat-1.4.0 vs app/assets/stylesheets/grid/_shift.scss in neat-1.5.0.pre

@@ -1,5 +1,12 @@
 @mixin shift($n-columns: 1) {
+  @include shift-in-context($n-columns);
+}
+
+@mixin shift-in-context($shift: $columns of $container-columns) {
+  $n-columns: nth($shift, 1);
+  $parent-columns: container-shift($shift);
+
   $direction: get-direction($layout-direction, $default-layout-direction);
   $opposite-direction: get-opposite-direction($direction);
 
   margin-#{$opposite-direction}: $n-columns * flex-grid(1, $parent-columns) + $n-columns * flex-gutter($parent-columns);