I typically edit before close voting / flagging / down voting because then I get to read thoroughly and see just how much effort they put in. In this case I did the same, then (mistakenly) close voted because I believed it was a duplicate. It wasn't but before I removed the vote the OP rolled back. I unrolled and then commented, asking. They explained and we sorted it out:
Another time, the OP and I may not be able to sort it out to easily. How can I make sure to not let it get to revision 6, and to prevent a war happening? Should I not unroll? Because that would leave a bad post. But I don't want a war...