Fix: invalid map bounds with 0 georeferenced accessions

src/accessions/ui/MapPage.tsx

@@ -321,13 +321,15 @@ class BrowsePage extends React.Component<IMapPageProps, any> {
           return <Loading />;
         }
 
-        if (Math.abs(mapInfo.bounds[0][0] - mapInfo.bounds[1][0]) < Math.abs(initialBounds[0][0] - initialBounds[1][0])) {
-          initialBounds[0][0] = mapInfo.bounds[0][0];
-          initialBounds[1][0] = mapInfo.bounds[1][0];
-        }
-        if (Math.abs(mapInfo.bounds[0][1] - mapInfo.bounds[1][1]) < Math.abs(initialBounds[0][1] - initialBounds[1][1])) {
-          initialBounds[0][1] = mapInfo.bounds[0][1];
-          initialBounds[1][1] = mapInfo.bounds[1][1];
+        if (mapInfo.bounds[0][0] !== null && mapInfo.bounds[1][0] !== null) {
+          if (Math.abs(mapInfo.bounds[0][0] - mapInfo.bounds[1][0]) < Math.abs(initialBounds[0][0] - initialBounds[1][0])) {
+            initialBounds[0][0] = mapInfo.bounds[0][0];
+            initialBounds[1][0] = mapInfo.bounds[1][0];
+          }
+          if (Math.abs(mapInfo.bounds[0][1] - mapInfo.bounds[1][1]) < Math.abs(initialBounds[0][1] - initialBounds[1][1])) {
+            initialBounds[0][1] = mapInfo.bounds[0][1];
+            initialBounds[1][1] = mapInfo.bounds[1][1];
+          }
         }
 
         const suggestionTerms = new Map();