$ git clone -n https://gitee.com/src-opencloudos-rpms/gtk3.git /var/lib/mock/dist-oc9-build-41547-14591/root/chroot_tmpdir/scmroot/gtk3
Cloning into '/var/lib/mock/dist-oc9-build-41547-14591/root/chroot_tmpdir/scmroot/gtk3'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gtk3
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13ff9a2 import gtk3-3.24.34-4.tl4