I have been told with the right archaic software there is a way, but with blender there is only pain. I will not say this is correct or easy, and would love to hear of an easier way, but I have “fixed” several md5 meshes by exporting a clean version of the model def from DR as an ase. The model def is what you actually see in the editor and appears uncorrupted, thus the output from dr is uncorrupted. You should make a copy of the model def and use a text editor to change its display pose to