$ git clone -n https://gitee.com/opencloudos-stream/icu.git /var/lib/mock/dist-ocs23-rebuild-test-0-build-326518-34957/root/chroot_tmpdir/scmroot/icu
Cloning into '/var/lib/mock/dist-ocs23-rebuild-test-0-build-326518-34957/root/chroot_tmpdir/scmroot/icu'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/icu
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc16d36 !9 ICU-23135 gb18030: update mapping tables for GB 18030-2022 Merge pull request !9 from ZoeDong/master