I have to disagree - the string is there:
http://lang.moodle.org/local/amos/view.php?t=1338889700&v=2200%2C2100%2C2000&l=de&c=hotpot&s=&d=hotpot%3Aaddinstance
I believe you had the filter misconfigured. Maybe you were looking just for 2.3dev version? (there is no 2.3 version of any plugin yet).