Multiplication with units behaves strangely

[benesch]

In the latest libsass, this fails

$ratio: (5em / 15px);

.out {
    padding: $ratio  * 30px;
}

with test.scss:4: 10em/px*px is not a valid CSS value. Works in older versions (roughly pre-3.1.0, but still investigating) and Ruby Sass. Curiously, this is still fine:

.out {
    padding: (5em / 15px)  * 30px;
}

May be related to #948, but seemed to warrant its own issue.

[benesch]

Whoop, looks like this is fixed in master. Sorry for the noise.

[benesch]

For posterity, looks to have been fixed by #797.