content-box vanished after minify

[philipp90]

css:

div {
  background: #000 content-box;
}

output:

div{background:#000}

"content-box" is vanished after minifying if written in short notation.

The following example works properly:

css:

div {
  background: #000;
  background-clip: content-box;
}

output:

div{background:#000;background-clip:content-box}

[jakubpawlowicz]

Please use --skip-shorthand-compacting switch until it's fixed.

[jakubpawlowicz]

Fixed in master, to be released in 3.1.