In the above situation (full shutdown, with hibernation configured, but not enabled), what are the outputs of :
ls -l /windows/hiberfil.sys
head -c 8 /windows/hiberfil.sys | od -t x1
(/windows to be replaced by the mount point of the Windows8 system partition)
This obviously requires mounting in read-only mode (mount option "ro")
Note : refusing to mount is probably not a regression, but the correct decision in the presence of data concealed by Windows8 and not synced to disk, and there probably are cases where ntfs-3g should refuse to mount but does not.