As someone said in a previous thread, the last one to count the votes wins...maybe our friend held this back to keep Dems from stealing votes, or at least from stealing enough.
A delay in reporting is not cheating, it just makes it difficult for others to cheat.
Here there wasn't a "local" error in reporting either. Anybody who was on scene, and noticed that the Brookfield line showed -o- votes cast, could call the Brookfield election officers and get that total.
Granted, the county clerk screwed up - she had the number, but omitted it from the spreadsheet she handed out. Still AP should have noted the -0- line. And the cheaters, who have more on the line, could have too.
I don't think the clerk did this on purpose - too many ways the "effort" can be defeated, with natural observations (what's up with NO votes in a city of 40,000?), followed up by a specific inquiry.