Fix issue that plugin will cannot cache records

Author: Jack251970

Flow.Launcher/ViewModel/MainViewModel.cs

@@ -1196,9 +1196,18 @@ async Task QueryTask(PluginPair plugin, bool reSelect = true)
 
                 currentCancellationToken.ThrowIfCancellationRequested();
 
-                results ??= _emptyResult;
+                IReadOnlyList<Result> resultsCopy;
+                if (results == null)
+                {
+                    resultsCopy = _emptyResult;
+                }
+                else
+                {
+                    // make a copy of results to avoid possible issue that FL changes some properties of the records, like score, etc.
+                    resultsCopy = DeepCloneResults(results);
+                }
 
-                if (!_resultsUpdateChannelWriter.TryWrite(new ResultsForUpdate(results, plugin.Metadata, query,
+                if (!_resultsUpdateChannelWriter.TryWrite(new ResultsForUpdate(resultsCopy, plugin.Metadata, query,
                         currentCancellationToken, reSelect)))
                 {
                     Log.Error("MainViewModel", "Unable to add item to Result Update Queue");