A not-closed <a> tag does not get corrected in comments

[tjaard]

Today I got a comment on my blog and the person who wrote the comment did not completely understand the <a> tag, forgetting to close it. WP did not correct this, leading to a yellow screen because of malformed XML (I serve XHTML with the correct mime type). Even if standard WP installations use text/html and therefore the user won't get parse errors, it is not acceptable that ordinary visitors can screw up a blog's markup, as using text/html as a mime type will probably still show the remaining text of the blog as a link.

[masquerade]

Could not duplicate on 1.5.2 or 1.6, kses filters properly.

[error]

Tested this on 1.5.2 and was unable to duplicate. Please provide an example which causes the problem and can be duplicated.