Acquire location data again after being cleared out

when hitting an empty dataset

Author: amotl

CHANGELOG.md

@@ -51,6 +51,7 @@
 - Remove automatic key suffix for popover texts
 - Limit effective zoom level by new "Maximum zoom level" option
 - Fix transformation machinery for data in timeseries format
+- Acquire location data again after being cleared out when hitting an empty dataset
 
 ## v0.2.0
 

src/worldmap_ctrl.ts

@@ -246,6 +246,9 @@ export default class WorldmapCtrl extends MetricsPanelCtrl {
   onRefresh() {
     console.info('Refreshing panel');
     this.errors.reset('data');
+    if (_.isEmpty(this.locations) && _.isEmpty(this.panel.snapshotLocationData)) {
+      this.loadLocationData(true);
+    }
   }
 
   onDataSnapshotLoad(snapshotData) {