Created attachment 179881 [details] Screenshot showing "correct" spellings of "Steckernetzteil" Maybe the real bug is that the dictionary wasn't updated for a while, but I found out that the word "Steckernetzteil" (plug-in power supply) is absent in the German dictionary. Even worse there are a few words that don't exist in German being suggested instead (see attachment).
Have seen a same type of compounding bugs in Dutch. I'm told this being a dictionary issue.. Bug 139319 However I struggled to contact those maintaining the DE dictionary