Authors removed when creating a new edition

[joric3]

When adding a new edition of a book, existing authors are removed even though the checkboxes for that are not marked.

To Reproduce
Steps to reproduce the behavior:

1. Go to a book, click on editions (e.g. https://buecher.pnpde.social/book/46494/editions)
2. Click to add a new edition.
3. Enter data for new edition, leave the existing authors as is, safe the entry.
4. New edition has no authors at all.

Expected behavior
I expect authors to be carried over, unless expressly specified to remove them.

Screenshot
This is what it looks like in German: Checkboxes unmarked, existing authors linked. This is what I save.

Instance
https://buecher.pnpde.social/about
version 0.6.4 (German localization)

Additional context
I tried removing them (checking the checkboxes), which works as expected: Authors are removed. (Adding a new author works, too.)
My current workaround is to create the new edition, then edit it to add the authors which had already been listed for the existing edition.

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Desktop (please complete the following information):
- OS: Windows 11
- Browser: Firefox v. 116.0.3 (64bit)

[prolibre]

Same thing over here (latest 'production' version). It happened again yesterday when I tried to create a new edition of Trust. The author disappeared.
It seems to me that this bug is very recent.

[jderuiter]

This bug should be fixed with #2992