$ git clone -n https://src.fedoraproject.org/rpms/ghc-contravariant.git /var/lib/mock/f33-build-346345-59418/root/chroot_tmpdir/scmroot/ghc-contravariant
Cloning into '/var/lib/mock/f33-build-346345-59418/root/chroot_tmpdir/scmroot/ghc-contravariant'...
$ git reset --hard 2f17645c40a8635a27b79972a4c2d8f2fa450690
HEAD is now at 2f17645 rebuild to fix StateVar requires hash (#1873687)