$ git clone -n https://gitee.com/guost123/gdb.git /var/lib/mock/dist-an23.3-build-431384-73055/root/chroot_tmpdir/scmroot/gdb
Cloning into '/var/lib/mock/dist-an23.3-build-431384-73055/root/chroot_tmpdir/scmroot/gdb'...
$ git fetch origin d8577e69bc9532250d814f4be8356df5a3b71262:KOJI_FETCH_HEAD
From https://gitee.com/guost123/gdb
 * [new ref]         d8577e69bc9532250d814f4be8356df5a3b71262 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8577e6 adapt for riscv64