$ git clone -n https://src.fedoraproject.org/rpms/ghc-natural-transformation.git /var/lib/mock/f38-build-side-42-init-devel-826098-28363/root/chroot_tmpdir/scmroot/ghc-natural-transformation
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-826098-28363/root/chroot_tmpdir/scmroot/ghc-natural-transformation'...
$ git fetch origin 440ed4726a58b2781b0202226c239f8840039888:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-natural-transformation
 * [new ref]         440ed4726a58b2781b0202226c239f8840039888 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 440ed47 Convert to %autorelease and %autochangelog