$ git clone -n https://gitee.com/opencloudos-stream/icu.git /var/lib/mock/dist-ocs23-riscv-rva23-build-350157-39050/root/chroot_tmpdir/scmroot/icu
Cloning into '/var/lib/mock/dist-ocs23-riscv-rva23-build-350157-39050/root/chroot_tmpdir/scmroot/icu'...
$ git fetch origin rva23:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/icu
 * [new branch]      rva23      -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 296bc23 [rva23] Upgrade ICU to version 77.1 for RISC-V RVA23