$ git clone -n https://gitee.com/opencloudos-stream/javapackages-bootstrap.git /var/lib/mock/dist-ocs23-loongarch64-build-135540-9626/root/chroot_tmpdir/scmroot/javapackages-bootstrap
Cloning into '/var/lib/mock/dist-ocs23-loongarch64-build-135540-9626/root/chroot_tmpdir/scmroot/javapackages-bootstrap'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/javapackages-bootstrap
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4785667 Rebuilt for OpenCloudOS Stream 23.09