Change lat/lon drill down to always just divide binWidth by 10

frontend/src/metabase/qb/lib/drilldown.js

@@ -15,9 +15,10 @@ import { getIn } from "icepick";
 // Helpers for defining drill-down progressions
 const CategoryDrillDown = type => [field => isa(field.special_type, type)];
 const DateTimeDrillDown = unit => [["datetime-field", isDate, unit]];
-const LatLonDrillDown = binWidth => [
-  ["binning-strategy", isLatitude, "bin-width", binWidth],
-  ["binning-strategy", isLongitude, "bin-width", binWidth],
+
+const LatLonDrillDown = (...args) => [
+  ["binning-strategy", isLatitude, ...args],
+  ["binning-strategy", isLongitude, ...args],
 ];
 
 /**
@@ -41,23 +42,26 @@ const DEFAULT_DRILL_DOWN_PROGRESSIONS = [
     // CategoryDrillDown(TYPE.City)
   ],
   // Country, State, or City => LatLon
-  [CategoryDrillDown(TYPE.Country), LatLonDrillDown(10)],
-  [CategoryDrillDown(TYPE.State), LatLonDrillDown(1)],
-  [CategoryDrillDown(TYPE.City), LatLonDrillDown(0.1)],
+  [
+    CategoryDrillDown(TYPE.Country), //
+    LatLonDrillDown("bin-width", 10),
+  ],
+  [
+    CategoryDrillDown(TYPE.State), //
+    LatLonDrillDown("bin-width", 1),
+  ],
+  [
+    CategoryDrillDown(TYPE.City), //
+    LatLonDrillDown("bin-width", 0.1),
+  ],
   // LatLon drill downs
   [
-    LatLonDrillDown(binWidth => binWidth >= 20),
-    LatLonDrillDown(10),
-    LatLonDrillDown(1),
-    LatLonDrillDown(0.1),
-    LatLonDrillDown(0.01),
+    LatLonDrillDown("bin-width", binWidth => binWidth >= 20), //
+    LatLonDrillDown("bin-width", 10),
   ],
   [
-    [
-      ["binning-strategy", isLatitude, "num-bins", () => true],
-      ["binning-strategy", isLongitude, "num-bins", () => true],
-    ],
-    LatLonDrillDown(1),
+    LatLonDrillDown("bin-width", () => true), //
+    LatLonDrillDown("bin-width", previous => previous / 10),
   ],
   // generic num-bins drill down
   [