$ git clone -n https://gitee.com/wenyuzifang/openjpeg2.git /var/lib/mock/dist-an23-build-469894-74027/root/chroot_tmpdir/scmroot/openjpeg2
Cloning into '/var/lib/mock/dist-an23-build-469894-74027/root/chroot_tmpdir/scmroot/openjpeg2'...
$ git fetch origin 350f62e3e70273e058e3686b160cf56bd9dd2baf:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/openjpeg2
 * [new ref]         350f62e3e70273e058e3686b160cf56bd9dd2baf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 350f62e Update code from upstream