It's impossible to get the ghc source with darcs on windows

[guest]

Annoyingly darcs crashes every time I try to get the ghc sources. This is a problem with both darcs 1.0.8 and 1.0.9

$ darcs get --partial http://darcs.haskell.org/ghc
This is the GHC darcs repository (HEAD branch)

For more information, visit the GHC developer wiki at
  http://hackage.haskell.org/trac/ghc
**********************
Copying patch 210 of 210... done.
Applying patch 42 of 209... darcs.exe: bug in darcs!
Impossible case at PatchRead.lhs:58 compiled 23:01:08 Jun  4 2007
Please report this to bugs@darcs.net,
If possible include the output of 'darcs --exact-version'.

Perhaps creating a new snapshot point could fix it?