$ git clone -n https://src.fedoraproject.org/rpms/ghc-lukko.git /var/lib/mock/f38-build-side-42-init-devel-861736-28428/root/chroot_tmpdir/scmroot/ghc-lukko
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-861736-28428/root/chroot_tmpdir/scmroot/ghc-lukko'...
$ git fetch origin 611d3b3f802b7a552a2abe07a041db1690664a4e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-lukko
 * [new ref]         611d3b3f802b7a552a2abe07a041db1690664a4e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 611d3b3 Convert to %autorelease and %autochangelog