improve selection interaction with clip changes (#744)

* brush interactions with underlying dataframe updates improved

* improve comment

* reset selection state upon clip

client/src/reducers/categoricalSelection.js

@@ -20,7 +20,8 @@ const CategoricalSelection = (
   switch (action.type) {
     case "initial data load complete (universe exists)":
     case "set World to current selection":
-    case "reset World to eq Universe": {
+    case "reset World to eq Universe":
+    case "set clip quantiles": {
       const { world } = nextSharedState;
       return ControlsHelpers.createCategoricalSelection(
         maxCategoryItems(prevSharedState),

client/src/reducers/continuousSelection.js

@@ -2,7 +2,8 @@ import { makeContinuousDimensionName } from "../util/nameCreators";
 
 const ContinuousSelection = (state = {}, action) => {
   switch (action.type) {
-    case "reset World to eq Universe": {
+    case "reset World to eq Universe":
+    case "set clip quantiles": {
       return {};
     }
     case "continuous metadata histogram start":

client/src/reducers/graphSelection.js

@@ -6,6 +6,7 @@ const GraphSelection = (
   action
 ) => {
   switch (action.type) {
+    case "set clip quantiles":
     case "reset World to eq Universe": {
       return {
         ...state,