blob
mark :1
data 6
alpha

reset refs/heads/master
commit refs/heads/master
mark :2
author A U Thor <author@example.com> 0 +0000
committer A U Thor <author@example.com> 0 +0000
data 10
add alpha
M 100644 :1 alpha

commit refs/heads/master
mark :3
author A U Thor <author@example.com> 0 +0000
committer A U Thor <author@example.com> 0 +0000
data 52
rename alpha to beta

--HG--
rename : alpha => beta
from :2
D alpha
M 100644 :1 beta