dont filter by ids if we don't have ids

rest-api/src/main/java/lcsb/mapviewer/api/projects/models/bioentities/elements/ElementsController.java

@@ -93,7 +93,9 @@ public class ElementsController extends BaseController {
     if (!Objects.equals(modelId, "*")) {
       properties.put(ElementProperty.MAP_ID, Arrays.asList(Integer.valueOf(modelId)));
     }
-    properties.put(ElementProperty.ID, new ArrayList<>(ids));
+    if (ids.size() > 0) {
+      properties.put(ElementProperty.ID, new ArrayList<>(ids));
+    }
 
     List<Element> allElements = elementService.getElementsByFilter(properties, true);