Revert "fix bugs"
Revert "fix bugs"

This reverts commit 2feeaf8d4166dd925fe5afcdf2abae5e32feeda6.

uwdata/vega-lite,uwdata/vega-lite,uwdata/vega-lite,ellisonbg/vega-lite,ellisonbg/vega-lite,vega/vega-lite,ellisonbg/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite