$ git clone -n https://gitee.com/mgb01105731/opencv.git /var/lib/mock/dist-an23-epao-build-381552-71809/root/chroot_tmpdir/scmroot/opencv
Cloning into '/var/lib/mock/dist-an23-epao-build-381552-71809/root/chroot_tmpdir/scmroot/opencv'...
$ git fetch origin e59d70444f3379bb266ddd4f2c78972301e752df:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/opencv
 * [new ref]         e59d70444f3379bb266ddd4f2c78972301e752df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e59d704 update to 4.8.0