$ git clone -n https://gitee.com/src-opencloudos-rpms/gdk-pixbuf2.git /var/lib/mock/dist-oc8-build-74398-50288/root/chroot_tmpdir/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/dist-oc8-build-74398-50288/root/chroot_tmpdir/scmroot/gdk-pixbuf2'...
$ git fetch origin e65b211486bb5910e57bc6ffe811df587c17d42b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gdk-pixbuf2
 * [new ref]         e65b211486bb5910e57bc6ffe811df587c17d42b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e65b211 import gdk-pixbuf2-2.36.12-6.tl3