$ git clone -n https://src.fedoraproject.org/rpms/ghc-boxes.git /var/lib/mock/f31-build-54105-27952/root/chroot_tmpdir/scmroot/ghc-boxes
Cloning into '/var/lib/mock/f31-build-54105-27952/root/chroot_tmpdir/scmroot/ghc-boxes'...
$ git reset --hard 50e42460b94eea2f68fdc9cfdbc4b16beb8f6197
HEAD is now at 50e4246 refresh to cabal-rpm-0.13