fixes #3391 (#3392)

* fixes #3391

* Apply suggestion from @gemini-code-assist[bot]

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

---------

Co-authored-by: Luca Garulli <[email protected]>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: 3 people

engine/src/main/java/com/arcadedb/serializer/JsonSerializer.java

@@ -126,6 +126,14 @@ public JSONObject serializeResult(final Database database, final Result result)
       setMetadata(document, object);
 
       type = document.getType();
+    
+
+      if (result.getMetadata("_projectionName") != null) {
+        for (final Map.Entry<String, Object> entry : document.toMap().entrySet()) {
+          object.put(entry.getKey(), serializeObject(database, entry.getValue()));
+        }
+        return object;
+      }
     }
 
     final StringBuilder propertyTypes = new StringBuilder();