Add reference to https://github.com/vega/vega-lite/issues/2634 in comment
Add reference to https://github.com/vega/vega-lite/issues/2634 in comment
uwdata/vega-lite,uwdata/vega-lite,uwdata/vega-lite,vega/vega-lite,vega/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,uwdata/vega-lite,vega/vega-lite