Spaces removed from :not statement

Hello,

I have been using gulp wrapper of this package and have noticed the whitespace is removed from :not statements.

Basically if i have css:

button {
    &:not(.gmap &){
        @include button();
    }
}

The compiled css becomes (notice the space removed from .gmap and button:

button:not(.gmapbutton){/* the mixin css */}

When using the following gulp process:

return gulp.src(cssPath + '/**/*.css')
        .pipe(groupMediaQueries())
        .pipe(cleanCss({
            compatibility: ie8,
            level: 2
        }))
        .pipe(gulp.dest(cssPath));

[jakubpawlowicz]

This time it is fine, please see @tobiasvielmetter example in test cases - https://github.com/jakubpawlowicz/clean-css/commit/64d8c27ed34eb0806c45f8002989bbbeaa32fc71#diff-893825b7389c9d5a4f8db929537b0649c75836c0cb03446de8fb1d2716e1ddffR273

Sorry for trouble with extra testing & reporting.

[jakubpawlowicz]

Hmmm, you are right @lluerich. I have no idea how it slipped through the tests. Let’s reopen it.