[xml/sgml-pkgs] Bug#496125: Bug#496125: libxml2: security fix does double free / segfaults (breaks Gnome apps)

[Walter]

I'm running etch and it seems like it is being affected by this bug
also. Just after updating libxml2 to 2.6.27.dfsg-3 I was unable to open
any files with eog, nor eog alone. No error messages when run from the
command line, no pop ups. Upon rebooting gdm started but when starting
gnome, it would hang for a little while at starting the window manager,
and then stop with the top and bottom panels drawn with nothing in them,
no menus, icons, or applets, just blank panels. No response from the
panels.

Downgrading from 2.6.27.dfsg-3 back to 2.6.27.dfsg-2 fixed the problem.