$ git clone -n https://gitee.com/ocs-upgrade/javapackages-tools.git /var/lib/mock/dist-ocs23-build-284283-27506/root/chroot_tmpdir/scmroot/javapackages-tools
Cloning into '/var/lib/mock/dist-ocs23-build-284283-27506/root/chroot_tmpdir/scmroot/javapackages-tools'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-upgrade/javapackages-tools
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7fc34d Upgrade to version 6.2.0