$ git clone -n https://src.fedoraproject.org/rpms/ghc-aeson.git /var/lib/mock/f38-build-688998-82509/root/chroot_tmpdir/scmroot/ghc-aeson
Cloning into '/var/lib/mock/f38-build-688998-82509/root/chroot_tmpdir/scmroot/ghc-aeson'...
$ git reset --hard cfbc4c27f99efabb7690dfed82286b725ec6f1de
HEAD is now at cfbc4c2 update to 2.0.3.0