$ git clone -n https://gitee.com/hongwei-qin/openmpi.git /var/lib/mock/dist-an23.3-build-423600-72929/root/chroot_tmpdir/scmroot/openmpi
Cloning into '/var/lib/mock/dist-an23.3-build-423600-72929/root/chroot_tmpdir/scmroot/openmpi'...
$ git fetch origin 3b6750e63adccd68f9e71e03647c47b1df420d43:KOJI_FETCH_HEAD
From https://gitee.com/hongwei-qin/openmpi
 * [new ref]         3b6750e63adccd68f9e71e03647c47b1df420d43 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b6750e update to 5.0.2