'has-many' Relationship panel is empty on Firefox

[GrumpyPirate]

I've noticed that the preview panel for a collection item's relationships doesn't render at all on Firefox, but seems fine on Chrome.

For this example, I have a simple Story -> Chapter * n -> Page * n content structure.

Before adding any relations is fine:

After adding some relations (Chapter -> Pages, in this example), nothing is displayed. Below is the result of adding two existing chapters, but not yet pressing 'Create':

The chapters do actually get added (confirmed by looking at the relations in the Chapter's mdoc entry) just nothing is rendered in the panel at all in the UI. Here's the result after hitting 'Create':

In Chrome, however, everything displays fine:

[emmatown]

I'm not able to reproduce this, could you share a GitHub repo with a minimal project where this happens?

[GrumpyPirate]

Absolutely, here:

https://github.com/GrumpyPirate/firefox-has-many-issue-repo

Setup instructions are in the repo ❤️

[linkb15]

#1384 I think this is related to this, it is probably resolved by latest version of firefox.