fix #1045260 - objectrelations - expand - cancel -> error

entity/ObjectTree_entity/recordcontainers/jdito/contentProcess.js

@@ -83,7 +83,7 @@ else
     }
     
     // get the base object types / ids to load the tree fo
-    if (vars.get("$param.ObjectIds_param") && vars.get("$param.ObjectTypes_param")) 
+    if (vars.exists("$param.ObjectIds_param") && vars.get("$param.ObjectIds_param") && vars.get("$param.ObjectTypes_param")) 
     {
         var originalObjectIds = JSON.parse(vars.getString("$param.ObjectIds_param"));
         var originalObjectTypes = JSON.parse(vars.getString("$param.ObjectTypes_param"));