hmmm, this mapper did 15K plus mass edits of reservoirs with the title"fixed old landuse=reservoir with replace with natural=water and water=reservoir. If then 1 or more obfuscated in there were not doing that but something else legit then it seems the CS comment was incomplete as well. No one would go seeking out single items in the 15K changes and exclude these from the revert with what was described as a single type change. Tough luck me thinketh.