Restore original wavelength position after slip edit, possible?

[Josh_guitarreiru]

Hi there,

I haven't found whether this is possible or not.
Let's say that I did slip edit a guitar track to quantize it, but after that I'd like to compare with the unedited track but I forgot to made a copy of it before editing. Is there any way I could restore the wavelength to its original position within(without Ctrl+Z) within every item split?

Thanks!