$ git clone -n https://src.fedoraproject.org/rpms/ghc-aws.git /var/lib/mock/f39-build-1987479-43353/root/chroot_tmpdir/scmroot/ghc-aws
Cloning into '/var/lib/mock/f39-build-1987479-43353/root/chroot_tmpdir/scmroot/ghc-aws'...
$ git fetch origin eb8d6f0a8ad24ad865ffeae15f3e64c238561b9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-aws
 * [new ref]         eb8d6f0a8ad24ad865ffeae15f3e64c238561b9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb8d6f0 https://hackage.haskell.org/package/aws-0.24.1/changelog