$ git clone -n https://src.fedoraproject.org/rpms/ghc-concurrent-extra.git /var/lib/mock/f31-build-54167-27959/root/chroot_tmpdir/scmroot/ghc-concurrent-extra
Cloning into '/var/lib/mock/f31-build-54167-27959/root/chroot_tmpdir/scmroot/ghc-concurrent-extra'...
$ git reset --hard daf1ff31b6bcf92ff41cec6739b034a5be0af417
HEAD is now at daf1ff3 refresh to cabal-rpm-0.13