$ git clone -n https://src.fedoraproject.org/rpms/ghc-lens.git /var/lib/mock/f33-build-141606-42605/root/chroot_tmpdir/scmroot/ghc-lens
Cloning into '/var/lib/mock/f33-build-141606-42605/root/chroot_tmpdir/scmroot/ghc-lens'...
$ git reset --hard b1fc6f7e85c3bbdb4afc38493d8da8e825a41b53
HEAD is now at b1fc6f7 revised .cabal