$ git clone -n https://gitee.com/zhaohang_mskdxl/guava.git /var/lib/mock/dist-an23.3-build-413311-72745/root/chroot_tmpdir/scmroot/guava
Cloning into '/var/lib/mock/dist-an23.3-build-413311-72745/root/chroot_tmpdir/scmroot/guava'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/zhaohang_mskdxl/guava
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4b9ca6 update to guava-32.1.3-6