**VE requirement** ([[ https://phabricator.wikimedia.org/T245299 | T245299 ]]):
* As someone editing a sub-reference in VE, it should be clear you are editing a reference that has a relationship to other reference(s)
* As someone editing a sub-reference in VE, it should be clear to you what reference said sub-reference relates to.
**User story:**
As an editor editing a sub-reference in an article in VE
I want understand that the article is a subreference
And I want to know which reference this subreference is related to
So that I know what information is already provided by the parent reference
And so that I know what information should/could be included in the subreference
**Proposed implementation:**
[x] pass the extends information with the reference model and display a warning when a reference is extending another one (to demo that the information is being passed through) [[ https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cite/+/915759/ | patch ]] {F37004228}
[] add a warning to the edit wizard ([[ https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Cite/+/927192/ | patch ]]) {F36959286}
make following contents render on beta:
[] display text of parent reference before the extends content in the VE pop up and
[] display text of parent reference in the edit wizard of the sub-reference.
Second step: review from UX on how it is rendered and discuss next steps