$ git clone -n https://src.fedoraproject.org/rpms/ghc-json.git /var/lib/mock/f31-build-100431-33260/root/chroot_tmpdir/scmroot/ghc-json
Cloning into '/var/lib/mock/f31-build-100431-33260/root/chroot_tmpdir/scmroot/ghc-json'...
$ git reset --hard c14baf05ebbe13ab8c1f8c0362547090039252f6
HEAD is now at c14baf0 BR prof for lib and static for executable