Yes, no new releases were done since the fix, sorry. To make it easier I downloaded the file (from Git), compiled it for you and attached the
mo file here.
Please find your current German translation file and overwrite it with the one attached to this post.
I can't tell you exactly out of mind where the language file is but it is either in the user dir or in the Program Files dir, in some
base/i18n/de/...*.mo file, see the FAQ for the userdir path:
http://ufoai.org/wiki/Manual:FAQ#General (Make sure you enable showing hidden files)
Another option would be playing on English as the bug was related to a translation issue happened in the German translation file only.
The game won't be able to load the corrupted savegames, but with a fixed language file (or playing on other languages) won't corrupt new games at least.
hth
-geever