fatal: Could not parse object 'd0e1231d4231f57c3024ba8f479a82b4966b359b'.
From https://github.com/NASA-Tensegrity-Robotics-Toolkit/NTRTsim
 * branch            master     -> FETCH_HEAD
HEAD is now at d0e1231 Changed kt, kp, and kv values for ribbed spine to defaults from learningSpines.
d0e1231d4231f57c3024ba8f479a82b4966b359b