$ git clone -n https://gitee.com/wency_cn/openjpeg2.git /var/lib/mock/dist-an23-build-492753-74562/root/chroot_tmpdir/scmroot/openjpeg2
Cloning into '/var/lib/mock/dist-an23-build-492753-74562/root/chroot_tmpdir/scmroot/openjpeg2'...
$ git fetch origin 8e31a55fd74d8ca0a6eb07d0da28fd863ec7826a:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/openjpeg2
 * [new ref]         8e31a55fd74d8ca0a6eb07d0da28fd863ec7826a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e31a55 Update code from upstream