The Hatha Yoga Pradipika uses the name gorakshasana, but not for the arrangement the Gheranda Samhita describes. Svatmarama gives a posture with the soles of the feet together in front of the perineum, calls it bhadrasana, and adds that the yogis also call it gorakshasana. The Gheranda Samhita then lists bhadrasana and gorakshasana separately, with different descriptions for each.
Two texts, two arrangements, one name shared between them and a second name shared as well. There is no way to reconcile the accounts without deciding that one compiler was mistaken, and nothing in the manuscript record supports that decision. The atlas therefore carries bhadrasana and gorakshasana as two entities and states the conflict on both, which is the same treatment it gives to any claim where the sources genuinely differ.
The underlying situation is well described in the scholarly literature on the hatha texts. These manuals are compilations, drawing on earlier verse material that circulated in more than one recension, and the posture chapters in particular gather items whose descriptions had already diverged before the compilers reached them. A name in this corpus identifies an entry in a list as reliably as it identifies a shape, and readers who expect a single fixed vocabulary will find the texts disagreeing with each other constantly. That disagreement is data about how the tradition was transmitted, and suppressing it would cost more than it saved.