Key 0xEC0E954C has a second UID with non-utf8-chars. If you print the key with
--fixed-list-mode --with-colons, the char is not being escaped. It is drawn as a
char with forign encoding.
This is a serios bug, since it will break *all* programmes, relying on UTF-8
output. In my python programme I cannot determine the encoding for a single char.
Please download above mentioned key from any keyserver and see for yourself:
$ gpg --list-key --with-colon --fixed-list-mode EC0E954C
<snip>uid .... G?nther</snip>
Any help is appreciated.