$ git clone -n https://src.fedoraproject.org/rpms/ghc-feed.git /var/lib/mock/f31-build-54337-27988/root/chroot_tmpdir/scmroot/ghc-feed
Cloning into '/var/lib/mock/f31-build-54337-27988/root/chroot_tmpdir/scmroot/ghc-feed'...
$ git reset --hard 334c55d1ae297556a1dee232c7d505e1fde023ec
HEAD is now at 334c55d update to 1.0.1.0