$ git clone -n https://src.fedoraproject.org/rpms/ghc-concatenative.git /var/lib/mock/f31-build-99640-33187/root/chroot_tmpdir/scmroot/ghc-concatenative
Cloning into '/var/lib/mock/f31-build-99640-33187/root/chroot_tmpdir/scmroot/ghc-concatenative'...
$ git reset --hard 112ead0dfaa39582a372c52c8bca61834e1305a4
HEAD is now at 112ead0 BR prof for lib and static for executable