0000000000000000000000000000000000000000 e544576e3f1ded6d9b0ee83a4363d4329994aa0c Jennifer Bi <jb3495@columbia.edu> 1555103867 -0400	fetch --append origin: storing head
e544576e3f1ded6d9b0ee83a4363d4329994aa0c addf3884504d2e11a23f44ef9701d31a32b02c41 Jennifer Bi <jb3495@columbia.edu> 1556075055 -0400	pull: fast-forward
addf3884504d2e11a23f44ef9701d31a32b02c41 37619bc000763ba890811530dcc09b261401fa37 Jennifer Bi <jb3495@columbia.edu> 1556923757 -0400	fetch --append origin: fast-forward
