$ git clone -n https://gitee.com/mgb01105731/jetty.git /var/lib/mock/dist-an23-build-277527-64418/root/chroot_tmpdir/scmroot/jetty
Cloning into '/var/lib/mock/dist-an23-build-277527-64418/root/chroot_tmpdir/scmroot/jetty'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/jetty
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0d6245 init upstream from version 9.4.40