fix KeyErrors from reading empty dirstate
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
fix KeyErrors from reading empty dirstate
manifest hash: 04a797f1b53e34153c8ea18950a5dd0eefb4694d
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)
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nP/Y3F1GvOle58NTIQ6UBA==
=0k3O
-----END PGP SIGNATURE-----
d40cc5aacc31ed673d9b5b24f98bee78c283062c 0.4f
1c590d34bf61e2ea12c71738e5a746cd74586157 0.4e
7eca4cfa8aad5fce9a04f7d8acadcd0452e2f34e 0.4d
b4d0c3786ad3e47beacf8412157326a32b6d25a4 0.4c
f40273b0ad7b3a6d3012fd37736d0611f41ecf54 0.5
0a28dfe59f8fab54a5118c5be4f40da34a53cdb7 0.5b