Fix bug with fixing workstation data

Do not try and process null data if data already exists.

1 files changed, 7 insertions, 4 deletions

diff --git a/src/leaflet-soton.js b/src/leaflet-soton.js
index a90c163..b9818bc 100644
--- a/src/leaflet-soton.js
+++ b/src/leaflet-soton.js
@@ -214,10 +214,13 @@ SELECT * WHERE {\
                     url: 'http://sparql.data.southampton.ac.uk/?query=' + encodeURIComponent(query)
                 },
                 function(data) {
-                    // Only report no data if fetching data failed, and there
-                    // is no local data
-                    if (data === null && LS.workstationData === null) {
-                        LS.fire("workstationData", null);
+                    // If fetching data has failed
+                    if (data === null) {
+                        // Only report this if there is no existing data
+                        if (LS.workstationData === null) {
+                            LS.fire("workstationData", null);
+                        }
+
                         return;
                     }