[BUG] Polymorphic serialiser is grouping results by resource type

[janders4]

Describe the bug^*

The Polymorphic serialiser is changing the order of results, grouping them by resource type. This causes problems when using the serialiser to perform actions such as searching where the original order of the results represents the strength of the search hit.

To Reproduce^*

1. Implement a polymorphic serialiser
2. Perform a query that will return multiple resource types
3. Have your application provide the results to the serialiser not already grouped by resource type

Expected behavior^*

The serialiser should honour the order of the resources or provide an option to maintain order

Platform^*

• OS: macOS 14.3.1
• Browser N/A
• Version: 1.11.3

* means required.