What happens when Murata re-writes a One Punch Man manga chapter?


Ok, so I've read what I believe it was chapter 165 of One Punch Man manga and
apparently Murata re-wrote it. This isnt the first time it happened. I can't
find the one which was re-written anymore, and apparently never happened
events like

> Saitama and Garou sitting at a table. Neither Blast comments about Earth
> bending.

Are the old ones for sell somewhere or something?

What happens when Murata re-writes a One Punch Man manga chapter?

