The thing is, you tend to hit save every other second, while you probably only need to revert/lock like once or twice a day.
Think of lock just like commiting to your personal source control. Revert than maps perfectly to SVN revert. You work just like you always do. You commit whenever you finished some task and want to start a new one. You revert whenever you found out that you did some wrong stuff since your last commit. I do these actions every day today.
But I almost never discard all changes since the last save. Hence, I'd be glad to have the OS save my work implicitly for me and take care of my personal source control system. The proposed system would actually save me a lot of work!
Think of lock just like commiting to your personal source control. Revert than maps perfectly to SVN revert. You work just like you always do. You commit whenever you finished some task and want to start a new one. You revert whenever you found out that you did some wrong stuff since your last commit. I do these actions every day today.
But I almost never discard all changes since the last save. Hence, I'd be glad to have the OS save my work implicitly for me and take care of my personal source control system. The proposed system would actually save me a lot of work!