$ git clone -n https://src.fedoraproject.org/rpms/util-linux.git /var/lib/mock/f40-build-777670-129469/root/chroot_tmpdir/scmroot/util-linux
Cloning into '/var/lib/mock/f40-build-777670-129469/root/chroot_tmpdir/scmroot/util-linux'...
$ git fetch origin 1567a60b3a109a9975331fb4eedbb26fa97346bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/util-linux
 * [new ref]         1567a60b3a109a9975331fb4eedbb26fa97346bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1567a60 Backport https://github.com/util-linux/util-linux/commit/211a9da0b4e9704eea210d7944b723fa78272c79