gistfile1.scss

// SCSS

.inline-list > li{
  display: inline-block;
}

.tools {
  @extend .inline-list;
}

// CSS (expected output)

.inline-list > li, .tools > li {
  display: inline-block;
}

// CSS (actual output)

.inline-list > li, .inline-list > .tools {
  display: inline-block;
}