well, i think skarlet sky is on the right track, but i wouldnt say its in BAGSEED genes, most bagseeds are fine, or otherwise the buds would have little bananas dotted about, some plants have it imprinted in their genetics to hermie, if you tried to breed with a plant with that type of genetics, they would pass through to the next generation, making them hermie too, so even if you got any good seeds, they would be useless...

plants with hermie genetics are basically weeds, they reproduce too much, and then their offspring do the same, and you end up with loadsa shit plants that have no use...

just keep the one that isnt a hermie, unless they both are now...

good luck