$ git clone -n https://src.fedoraproject.org/rpms/ghc-HTTP.git /var/lib/mock/f31-build-53927-27924/root/chroot_tmpdir/scmroot/ghc-HTTP
Cloning into '/var/lib/mock/f31-build-53927-27924/root/chroot_tmpdir/scmroot/ghc-HTTP'...
$ git reset --hard 2edd4c2f561b2c1f1e810160d5308dbe9c0aa7a6
HEAD is now at 2edd4c2 revised .cabal file