Hi! One of my last grows I grew it was from a seed that came from a hermed plant. I planted two of the seeds and 1 of them hermed and seeded lots, while the other didn't. From what I know, they can carry the fem and herm genetics now. So if you plant them, just keep a close eye and pull any that seed!
As for the last part of the question, I am not sure what you mean. The one plant that seeded from herming, will be that same strain. The new plant that got pollinated from the Orange Sherbert, will most likely produce a new hybrid of the two strains.
I could be wrong but this is all the knowledge from experience and reading others experiences!
Good luck :)