$ git clone -n https://src.fedoraproject.org/rpms/ghc-json.git /var/lib/mock/f41-build-838077-159539/root/chroot_tmpdir/scmroot/ghc-json
Cloning into '/var/lib/mock/f41-build-838077-159539/root/chroot_tmpdir/scmroot/ghc-json'...
$ git reset --hard 94400854b184c4abf1b4e86dc1a9800c012e55fd
HEAD is now at 9440085 https://hackage.haskell.org/package/json-0.11/changelog