css - css file on googlecode charset issue with TortoiseSVN

Question

I have a css file containing hebrew characters:

.className:after {
     content: "x סגור";
}

The file is stored on googlecode SVN; When viewing this file in the browser I see ???? instead of what is expected.

I tried adding @charset at the top of the file as well as setting TortoiseSVN mime-type properties svn:charset to utf-8 etc

When the same CSS is inside the html files, it renders great.

I assume this is the way the TortoiseSVN stores the file or how google is serving the file.

I've tried a few solutions as suggested here before, e.g. Specifying a charset for stylesheets, but none seems to solve my issue.