$ git clone -n https://gitee.com/yan1hcdc/prefixdevname.git /var/lib/mock/dist-an23-build-441847-73171/root/chroot_tmpdir/scmroot/prefixdevname
Cloning into '/var/lib/mock/dist-an23-build-441847-73171/root/chroot_tmpdir/scmroot/prefixdevname'...
$ git fetch origin 82f3235d414928e257bdd3b8c779031904fa5345:KOJI_FETCH_HEAD
From https://gitee.com/yan1hcdc/prefixdevname
 * [new ref]         82f3235d414928e257bdd3b8c779031904fa5345 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82f3235 add support for riscv build