$ git clone -n https://src.fedoraproject.org/rpms/ghc-threads.git /var/lib/mock/f31-build-55004-28078/root/chroot_tmpdir/scmroot/ghc-threads
Cloning into '/var/lib/mock/f31-build-55004-28078/root/chroot_tmpdir/scmroot/ghc-threads'...
$ git reset --hard 029bbe1149376d5ca13a9fe0ed0689e31b864d8c
HEAD is now at 029bbe1 refresh to cabal-rpm-0.13