Kano replied and linked to those exact fixes being in his cgminer ... he's maintaining it exactly.
https://github.com/kanoi/cgminer/blob/ants1-4.3.2a-85fcf0c/util.c#L2048There must be some other bug. :-(
My two test AntMiners ran fine on the pool ... switched to the backups when the thresholds were too high ... but then at some point the NiceHash pool went Active again, but nothing was mining.
Crap!