$ git clone -n https://src.fedoraproject.org/rpms/ghc-aeson.git /var/lib/mock/f33-build-154033-43345/root/chroot_tmpdir/scmroot/ghc-aeson
Cloning into '/var/lib/mock/f33-build-154033-43345/root/chroot_tmpdir/scmroot/ghc-aeson'...
$ git reset --hard f8ccfe50229abbcec175c95ec38340a406debc11
HEAD is now at f8ccfe5 update to 1.4.6.0