Here's the log file, I don't notice anything I would expect to affect middle mouse buttons in the 27/2 update, just ekiga, imagemagick and slocate.
** Attachment added: "dpkg.log" http://librarian.launchpad.net/6581909/dpkg.log.1 -- Middle-mouse-button paste into emacs stopped working https://launchpad.net/bugs/88665 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
