$ git clone -n https://gitee.com/yan1hcdc/dmidecode.git /var/lib/mock/dist-an23-build-442556-73188/root/chroot_tmpdir/scmroot/dmidecode
Cloning into '/var/lib/mock/dist-an23-build-442556-73188/root/chroot_tmpdir/scmroot/dmidecode'...
$ git fetch origin b4412e84f683d4b0ca9a0de32b03b61bdbe69302:KOJI_FETCH_HEAD
From https://gitee.com/yan1hcdc/dmidecode
 * [new ref]         b4412e84f683d4b0ca9a0de32b03b61bdbe69302 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4412e8 add support for riscv build