$ git clone -n https://gitee.com/src-opencloudos-rpms/icu.git /var/lib/mock/dist-oc9-build-122885-72481/root/chroot_tmpdir/scmroot/icu
Cloning into '/var/lib/mock/dist-oc9-build-122885-72481/root/chroot_tmpdir/scmroot/icu'...
$ git fetch origin 81a8c2fb4105a8f217ace4d1e9c26c43f190ac20:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/icu
 * [new ref]         81a8c2fb4105a8f217ace4d1e9c26c43f190ac20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81a8c2f import icu-74.2-1.tl4