[FIX] auto_save: Use global autoSaveId var instead of auto_save_id which help the wrong info (not in 12.x+)
Thanks marclaporte, hope it fixes w4612

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/11.x@48091 b456876b-0849-0410-b77d-98878d47e9d5