$ git clone -n https://src.fedoraproject.org/rpms/ghc-unordered-containers.git /var/lib/mock/f38-build-side-42-init-devel-797737-28067/root/chroot_tmpdir/scmroot/ghc-unordered-containers
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-797737-28067/root/chroot_tmpdir/scmroot/ghc-unordered-containers'...
$ git fetch origin 1ffd39e628554b8656229ee00d43ae4a8b7a94ff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-unordered-containers
 * [new ref]         1ffd39e628554b8656229ee00d43ae4a8b7a94ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ffd39e Convert to %autorelease and %autochangelog