$ git clone -n https://src.fedoraproject.org/rpms/ghc-contravariant.git /var/lib/mock/f31-build-99764-33202/root/chroot_tmpdir/scmroot/ghc-contravariant
Cloning into '/var/lib/mock/f31-build-99764-33202/root/chroot_tmpdir/scmroot/ghc-contravariant'...
$ git reset --hard 3032ed1d06da0334f4e5ac7ea5da2e25567c05f4
HEAD is now at 3032ed1 BR prof for lib and static for executable