0000000000000000000000000000000000000000 64ce77011a5d6f37673c8e17b119a87838b36c51 committer <committer@example.com> 1112911993 -0700	commit (initial): root
64ce77011a5d6f37673c8e17b119a87838b36c51 64ce77011a5d6f37673c8e17b119a87838b36c51 committer <committer@example.com> 1112911993 -0700	checkout: moving from main to A
64ce77011a5d6f37673c8e17b119a87838b36c51 a2dad3097e5a657be1730738eebba201245627c0 committer <committer@example.com> 1112912053 -0700	commit: a
a2dad3097e5a657be1730738eebba201245627c0 64ce77011a5d6f37673c8e17b119a87838b36c51 committer <committer@example.com> 1112912053 -0700	checkout: moving from A to B
64ce77011a5d6f37673c8e17b119a87838b36c51 b9381e5cf00d5804c66aba2d7dd267623f2d1683 committer <committer@example.com> 1112912113 -0700	commit: b
