$ git clone -n https://gitee.com/src-anolis-os/jsoncpp.git /var/lib/mock/dist-an23-build-339068-69766/root/chroot_tmpdir/scmroot/jsoncpp
Cloning into '/var/lib/mock/dist-an23-build-339068-69766/root/chroot_tmpdir/scmroot/jsoncpp'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/jsoncpp
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d27f835 rebuild