Merge pull request #10703 from zurb/fix10693

 fixes #10693 stack button group always expanded

diff --cc scss/components/_button-group.scss
index 5b0a1238b498f99f4d38e9f413a413e516f2e627,18298d76ddb9f63d64af5dd2633770cef6057bcd..bb88bb212661df584ad3685987f56e6f14412e0d
--- 1/scss/components/_button-group.scss
--- 2/scss/components/_button-group.scss
+++ b/scss/components/_button-group.scss
@@@ -204,10 -204,12 +204,12 @@@ $buttongroup-radius-on-each: true !defa
      }
  
      // Even-width Group
-     &.expanded { @include button-group-expand; }
+     &.expanded {
+       @include button-group-expand;
+     }
  
      // Colors
 -    @each $name, $color in $foundation-palette {
 +    @each $name, $color in $button-palette {
        @if $button-fill != hollow {
          &.#{$name} #{$buttongroup-child-selector} {
            @include button-style($color, auto, auto);