Sass is curretly broken

[Arkkimaagi]

I get this error on a fresh clone:

Error in plugin 'sass'
Message:
    scss/third-party/compass-mixins/compass/functions/_lists.scss
Error: Functions may not be defined within control directives or other mixins.
        on line 81 of scss/third-party/compass-mixins/compass/functions/_lists.scss
>>   @function compact($vars...) {
   --^

I think it's directly related to this stackoverflow issue:
http://stackoverflow.com/questions/36775755/functions-may-not-be-defined-within-control-directives-or-other-mixins

It's kind of tricky to fix tho, I have no suggestions how to approach, just wanted to let you know and alert other new users that face same issue.

Node v5.9.1
Gulp CLI version 3.9.1
Gulp Local version 3.9.1

[Arkkimaagi]

A quick hack was to comment out first row of:
scss/third-party/compass-mixins/compass/_functions.scss

like so:

// @import "functions/lists";
@import "functions/cross_browser_support";
@import "functions/gradient_support";
@import "functions/constants";
@import "functions/display";
@import "functions/colors";

At least now the css is generated, I'm not sure if lists are used or not, but this is way more usable than before.