Odd copy/pasting behavior for search results resulting in H2/every word italicized

If you search and then copy and paste a match, every word in the text in it is wrapped in [I][/I] BB Code as well as a heading 2.

Example search:

Lütfen içeriği görebilmek için Giriş yap yada Kayıt ol

xenforo.com

Copy and paste Warning Improvements by Xon as a link into the editor.

Lütfen içeriği görebilmek için Giriş yap yada Kayıt ol

It doesn't seem to be the issue when you copy/paste from What's new (1) view or from...