$ git clone -n https://gitee.com/src-opencloudos-rpms/libdrm.git /var/lib/mock/dist-oc8-build-120300-71160/root/chroot_tmpdir/scmroot/libdrm
Cloning into '/var/lib/mock/dist-oc8-build-120300-71160/root/chroot_tmpdir/scmroot/libdrm'...
$ git fetch origin bb05bbbafb5ea6bce607d0a73699d95613d0ab8a:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libdrm
 * [new ref]         bb05bbbafb5ea6bce607d0a73699d95613d0ab8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb05bbb import libdrm-2.4.115-2.tl3.1