0000000000000000000000000000000000000000 5aef65f6e98d1a85e0852ae1b7749f5b437b85c0 committer <committer@example.com> 946771200 +0000	commit (initial): base
5aef65f6e98d1a85e0852ae1b7749f5b437b85c0 5aef65f6e98d1a85e0852ae1b7749f5b437b85c0 committer <committer@example.com> 946771200 +0000	checkout: moving from main to A
5aef65f6e98d1a85e0852ae1b7749f5b437b85c0 867ffff685c8e22a1073cf513a2bce6f653c996e committer <committer@example.com> 946771200 +0000	commit: delete the earlier and shared trees
867ffff685c8e22a1073cf513a2bce6f653c996e 5aef65f6e98d1a85e0852ae1b7749f5b437b85c0 committer <committer@example.com> 946771200 +0000	checkout: moving from A to B
5aef65f6e98d1a85e0852ae1b7749f5b437b85c0 9f836033ce288295ffa6d48540d7234eff2b548e committer <committer@example.com> 946771200 +0000	commit: delete the shared tree
