$ git clone -n https://gitee.com/src-opencloudos-rpms/mesa.git /var/lib/mock/dist-oc9-build-43007-14591/root/chroot_tmpdir/scmroot/mesa
Cloning into '/var/lib/mock/dist-oc9-build-43007-14591/root/chroot_tmpdir/scmroot/mesa'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mesa
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de721e8 import mesa-22.2.3-5.tl4