Incorrect behaviour of unquote and list

[KittyGiraudel]

Not sure if there is already a relevant open issue.

Test

$list:   '(-webkit-min-device-pixel-ratio: 2)', '(min-resolution: 192dpi)'; 
$string: '(-webkit-min-device-pixel-ratio: 2),   (min-resolution: 192dpi)';

.foo {
  // I should not unquote a list, I know. But still.
  content: unquote($list);
  content: unquote($string);
}

Expected

.foo {
  content: "(-webkit-min-device-pixel-ratio: 2)", "(min-resolution: 192dpi)";
  content: (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi);
}

Actual

.foo {
  content: (-webkit-min-device-pixel-ratio: 2)", "(min-resolution: 192dpi);
  content: (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi);
}

[xzyfer]

Fixed by #1312