As a work-around for now, if you use a text expansion utility you might be able to clean the clipboard using that, for example, in Textexpander I can set a Javascript snippet like this:
TextExpander.pasteboardText.replace(/[*"\\/<>:|?]/g,"");
where the regular expression contains the characters to remove inside square brackets. You could be more sophisticated if you wanted, e.g. replacing with other characters.