$ git clone -n https://gitee.com/src-opencloudos-rpms/gdk-pixbuf2.git /var/lib/mock/dist-oc9-build-175198-79887/root/chroot_tmpdir/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/dist-oc9-build-175198-79887/root/chroot_tmpdir/scmroot/gdk-pixbuf2'...
$ git fetch origin 78eca1cd9c7f09a2f9e3c9a89dbe1ffc8a793cf1:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gdk-pixbuf2
 * [new ref]         78eca1cd9c7f09a2f9e3c9a89dbe1ffc8a793cf1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78eca1c import gdk-pixbuf2-2.42.10-8.tl4