sass/sass-spec — pull request #81 by malrase (2014-10-08 16:13:04+00:00)
Title: Adding a test for sass/libsass#439 – but it may not cover all the bugs...

...covered in the issue itself.

The issue seems to have two bugs: one involving placeholders throwing an error and one involving ampersand giving non-standard outputs. I've made a test for the former.