about model_final_wo_optim-e8c99c96.pth

Hello, I found a missing model while training Self6D++after pre training_ Final_ Wo_ The optim-e8c99c96.pth file. This file can also be found in the trained models you provided, but I would like to ask if this file is a model trained through the GDR-Net network? I did not generate this file after pre training. Can I get your answer