Okay, think I see what is going on.
Some feminized strains are less stabil than others (or some regulars). Some particular strains are somewhat sensative to some conditions and it's not the same for all strains.
Even so, if seeds come from a reputable house the likelyhood is greater,,, but honestly not that great that it could hermie on you under the right (wrong?) conditions.
Now take a feminized seed, grow it to verify sex before you clone (shouldn't even be a issue) and the offspring (clones) are female exactly as the mother,, not hermie, or male.
And for linking Grasscity,,,, (no comment)
However, if the discussion was about Auto Flowering Feminized seeds,, and cloning from them, well, that's totally a new game.