$ git clone -n https://gitee.com/src-opencloudos-rpms/gdk-pixbuf2.git /var/lib/mock/dist-oc8-build-238022-82500/root/chroot_tmpdir/scmroot/gdk-pixbuf2
Cloning into '/var/lib/mock/dist-oc8-build-238022-82500/root/chroot_tmpdir/scmroot/gdk-pixbuf2'...
$ git fetch origin 121e45d2c6496c04a8cc72685c084268320c4605:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gdk-pixbuf2
 * [new ref]         121e45d2c6496c04a8cc72685c084268320c4605 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 121e45d import gdk-pixbuf2-2.36.12-8.tl3