$ git clone -n https://gitee.com/src-opencloudos-rpms/cairo.git /var/lib/mock/dist-oc9-build-191018-80344/root/chroot_tmpdir/scmroot/cairo
Cloning into '/var/lib/mock/dist-oc9-build-191018-80344/root/chroot_tmpdir/scmroot/cairo'...
$ git fetch origin 888936d7bc646a015ed5a38029b8639e977f5a3e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/cairo
 * [new ref]         888936d7bc646a015ed5a38029b8639e977f5a3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 888936d import cairo-1.17.8-6.tl4