$ git clone -n https://gitee.com/src-opencloudos-rpms/icu.git /var/lib/mock/dist-oc9-build-138344-79684/root/chroot_tmpdir/scmroot/icu
Cloning into '/var/lib/mock/dist-oc9-build-138344-79684/root/chroot_tmpdir/scmroot/icu'...
$ git fetch origin b35a54433c2b91e3bddb213e376c951570f5e9a2:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/icu
 * [new ref]         b35a54433c2b91e3bddb213e376c951570f5e9a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b35a544 import icu-74.2-2.tl4