I like that as a concept, except it doesn't even go into local history (up arrow), which makes the feature so frustrating for me that I ended up turning it off.

I like that as a concept, except it doesn't even go into local history (up arrow), which makes the feature so frustrating for me that I ended up turning it off. Too many times I copy and paste something and end up with a little extra whitespace at the beginning. I guess the number of times I've done it on purpose was dwarfed by the number of times I did it on accident, and that killed it for me.