I just did:

$ darcs get trunk prod

darcs failed:  Couldn't fetch `ff0e859e174faf4596ee9e426f5ab5ad4c53efbe'
in subdir pristine.hashed from sources:

thisrepo:/Users/wonwinmcbrootles/playground/allmydata/tahoe/prod
cache:/Users/wonwinmcbrootles/.darcs/cache
repo:/Users/wonwinmcbrootles/playground/allmydata/tahoe/trunk
repo:/Users/wonwinmcbrootles/playground/allmydata/tahoe/trunk-hf

$ darcs --version
2.0.0 (2.0.0 (+ -1 patch)