$ git clone -n https://src.fedoraproject.org/rpms/deepin-util-dfm.git /var/lib/mock/f45-build-47209-865/root/chroot_tmpdir/scmroot/deepin-util-dfm
Cloning into '/var/lib/mock/f45-build-47209-865/root/chroot_tmpdir/scmroot/deepin-util-dfm'...
$ git fetch origin c840ebf373a771f1bfebff3c6358c5b1e6d1fb7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-util-dfm
 * [new ref]         c840ebf373a771f1bfebff3c6358c5b1e6d1fb7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c840ebf 1.3.47