CSS Compressor: Error with @import in style.css

if a theme has something like
@import "../style.css";
inside its style.css (for example bluebreeze-fixed - a subtheme of bluebreeze)

the css compressor creates a css file starting like this

@import url("/sites/tobiasmaier.info/themes/bluebreeze/bluebreeze-fixed/../style.css");#aggregator .feed-source .feed-title{margin-top:0;}#aggregator .feed-source .feed-image img[...]

this means a theme-stylesheet comes first and gets overwritten by drupal default stylesheets