$ git clone -n https://gitee.com/newstart-gdlc/nde-backgrounds.git /var/lib/mock/dist-an23-nde-build-498225-73607/root/chroot_tmpdir/scmroot/nde-backgrounds
Cloning into '/var/lib/mock/dist-an23-nde-build-498225-73607/root/chroot_tmpdir/scmroot/nde-backgrounds'...
$ git fetch origin 479d867f64cfa8e7cf7f3795532a2b437de20505:KOJI_FETCH_HEAD
From https://gitee.com/newstart-gdlc/nde-backgrounds
 * [new ref]         479d867f64cfa8e7cf7f3795532a2b437de20505 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 479d867 Modify spec file