fatal: Could not parse object '75cd423c52ac1b9b4724cf98e167b866fa69b267'. From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim * branch master -> FETCH_HEAD HEAD is now at 75cd423 experimenting with longer spine. 75cd423c52ac1b9b4724cf98e167b866fa69b267