Good news for Time Machine users running OS X Lion—Apple issued a supplemental update on Monday that fixes an issue found when restoring a Mac from a Time Machine backup. The Mac OS X 10.7.3 Supplemental Update only addresses this specific bug, as it is a small add-on to a larger system update released a month ago. Those previous updates in 10.7.3 included wider language support, a Safari 5.1.3 update, and various bug fixes.
You can download the 38 KB Mac OS X 10.7.3 Supplemental Update through Software Update or directly from Apple's support site. The update is recommended for users running 10.7.3 with Time Machine backups.