$ git clone -n https://src.fedoraproject.org/rpms/ghc-tls.git /var/lib/mock/f31-build-55011-28078/root/chroot_tmpdir/scmroot/ghc-tls
Cloning into '/var/lib/mock/f31-build-55011-28078/root/chroot_tmpdir/scmroot/ghc-tls'...
$ git reset --hard a17e68cf961eba7db05046c64ca6e0f108e1bf00
HEAD is now at a17e68c refresh to cabal-rpm-0.13