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.

[DD32]

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

[moikirsch]

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).

[DD32]

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

[Denis-de-Bernardy]

works for me too, in 2.8