Fix flex grid Sass error in Ruby Sass, fixes #7679

diff --git a/scss/grid/_flex-grid.scss b/scss/grid/_flex-grid.scss
index 32dbdfb091d766eb55d974db3f79f18336e950d9..2ca920f9b77cf55ed3fc1d6fc2e9f031fd4f9b33 100644 (file)
--- a/scss/grid/_flex-grid.scss
+++ b/scss/grid/_flex-grid.scss
@@ -241,6 +241,8 @@ $-zf-flex-align: (
     }
 
     .#{$-zf-size}-uncollapse {
+      $gutter: null;
+
       @if $grid-column-gutter {
         $gutter: $grid-column-gutter;
       }