Special chars in DocHeader are encoded incorrectly
In the filelist module, the docheader has several buttons, one of them saying "Up one level". In the German translation, "Eine Ebene höher", the umlaut "ö" is broken:
"Eine Ebene höher gehen
The xlf file (lang/de.locallang_core.xlf) contains the text correctly with "ö". The problem must be somewhere in the processing.