Steps to replicate the issue:

GIVEN There's a page with a subrefrence using the details syntax
WHEN I visit that page in read mode using the Parsoid rendering
AND I hover the subreference with my mouse

What happens?:

THEN The reference preview shows up only showing the content of the details

What should have happened instead?:

The reference previews should show the main content and the details content like in legacy rendering.

See screenshots to compare the current behavior

Legacy

Parsoid

Dev notes

• extensions/Cite/modules/ext.cite.referencePreviews/createReferenceGateway.js

Note: This is blocked by T378568: Parsoid: Render sub-refs in the references section like in legacy parser , and will be fixed when its done. We have to make sure that the class mw-subreference-list is applied to subref list in Parsoid