$ git clone -n https://gitee.com/opencloudos-stream/gcc /var/lib/mock/dist-ocs23-riscv-base-build-322390-34212/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-ocs23-riscv-base-build-322390-34212/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gcc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10e7821 !22 add riscv support and enable libasan/libubsan for riscv Merge pull request !22 from Xinlong-Chen/master