$ git clone -n https://gitee.com/kun-llfl/kmod-usdm.git /var/lib/mock/dist-an8.8-kernel-5.10-build-291941-64834/root/chroot_tmpdir/scmroot/kmod-usdm
Cloning into '/var/lib/mock/dist-an8.8-kernel-5.10-build-291941-64834/root/chroot_tmpdir/scmroot/kmod-usdm'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/kun-llfl/kmod-usdm
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 92f7115 inital build for kmod-usdm