### Please describe the problem.

[380 of 462] Compiling Assistant.WebApp.Types ( Assistant/WebApp/Types.hs, dist/build/git-annex/git-annex-tmp/Assistant/WebApp/Types.o )

Assistant/WebApp/Types.hs:157:10:
    Duplicate instance declarations:
      instance PathPiece Bool
        -- Defined at Assistant/WebApp/Types.hs:157:10
      instance PathPiece Bool
        -- Defined in `path-pieces-0.1.4:Web.PathPieces'
cabal: Error: some packages failed to install:
git-annex-5.20140709 failed during the building phase. The exception was:
ExitFailure 1


### What steps will reproduce the problem?

cabal install git-annex --bindir=$HOME/bin


### What version of git-annex are you using? On what operating system?
git-annex-5.20140709, Fedora 20


### Please provide any additional information below.

[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log


# End of transcript or log.
"""]]

> Already fixed in git yesterday. [[done]] --[[Joey]]
