Apple just issued a maintenance update to the Mac OS X Lion 10.7.3 system update that was released into the wild a little over a month ago. The Mac OS X Lion 10.7.3 Supplemental Update, which is available through Software Update under the Apple menu or as a standalone download here [24.55MB], fixes an issue when restoring a Mac from a Time Machine backup. Apple said the update is recommended for users running 10.7.3 with Time Machine backups.