$ git clone -n https://gitee.com/opencloudos-stream/libe-book.git /var/lib/mock/dist-oc9-epol-build-123404-72861/root/chroot_tmpdir/scmroot/libe-book
Cloning into '/var/lib/mock/dist-oc9-epol-build-123404-72861/root/chroot_tmpdir/scmroot/libe-book'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libe-book
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 514705e !1 Rebuild for icu-74.2 Merge pull request !1 from brucezhang/master