$ git clone -n https://src.fedoraproject.org/rpms/ghc-aeson-better-errors.git /var/lib/mock/f37-build-side-32-misc-devel-209063-13448/root/chroot_tmpdir/scmroot/ghc-aeson-better-errors
Cloning into '/var/lib/mock/f37-build-side-32-misc-devel-209063-13448/root/chroot_tmpdir/scmroot/ghc-aeson-better-errors'...
$ git reset --hard 10f2788cd977886bf203545e9aaf9f8d5a012e22
HEAD is now at 10f2788 update to 0.9.1.1