The latest version of yui-compressor does not have this problem. It is
easy enough to install manually from
https://github.com/yui/yuicompressor/releases
cd /tmp/
wget
https://github.com/yui/yuicompressor/releases/download/v2.4.8/yuicompressor-2.4.8.jar
sudo mv yuicompressor-2.4.8.jar /usr/share/yui-compressor/yui-compressor.jar
Perhaps the debian package maintainer could install version 2.4.8
instead of whatever version currently gets installed.
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