Glad she's un-set, that's good for you! She won't be laying again yet unless she hadn't stopped during the attempted setting.
I eat my hens that can't brood properly but won't stop. Some of them will die if they aren't stopped, but go back to brooding so frequently they never regain condition, and never lay consistently either, so they're a loss either way; so if I have a trouble wannabe broody who doesn't have the instinct, I cull, now. I have used some as makeshift incubators in emergencies, though, but of course that's taking a risk. One hen ate out the baby's eyes and brains! On a brighter note, I've had never-broody old battery hens suddenly decide to brood and raise chicks, and do it perfectly, too. But if they're lacking the rounding-up-the-eggs idea, they don't seem to ever manage the rest of it.