Comment author it is not displayed if it contains a special character

[moikirsch]

The function that returns the comment autor doesn't work properly if the name contains a special character (such as ñ).

The name is ok in the database so it's a defect caused on the frontend side.

It also affects the tag that displays the comment author.

Works for me.

IMO, The problem is going to be with the Charset used by your database vs. the charset you've got WordPress talking to the database with.

See #7683 and links within

One thing is to displayed the wrong character... but on this case it is not displaying anything at all (not just the character but the whole name).

Well... Thats odd, I still suggest you look into the charsets though, It worked for me.

works for me too, in 2.8