$ git clone -n https://gitee.com/yan1hcdc/libgdata.git /var/lib/mock/dist-an23-build-482619-74272/root/chroot_tmpdir/scmroot/libgdata
Cloning into '/var/lib/mock/dist-an23-build-482619-74272/root/chroot_tmpdir/scmroot/libgdata'...
$ git fetch origin b34346e03885dac20505c94290ea2dd90ecebf3f:KOJI_FETCH_HEAD
From https://gitee.com/yan1hcdc/libgdata
 * [new ref]         b34346e03885dac20505c94290ea2dd90ecebf3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b34346e fix gtk3 not be installed into buildroot