Using @at-root with selectors generates invalid CSS

[raphaelschroiff]

I have the following scss:

@mixin device($type) {
  @at-root .device-#{$type} & {
    @content;
  }
}

@include device(phone) {
  .p {
    background-color: red;
  }
}

libsass 3.3.2 generates invalid css out of this:

.device-phone &.p {
  background-color: red; }

compared to libsass 3.2.5:

.device-phone .p {
  background-color: red;
}

However, RubySass 3.4.14 gives me the following error: Base-level rules cannot contain the parent-selector-referencing character '&'.

So an error message would also be ok for me (and the correct behavior I guess)

[xzyfer]

Thanks for the report @raphaelschroiff. This appears to be a duplicate. Closing in favour it #1644.