Foliate produced faulty book .json file and can't start because of it

[dryBoneMarrow]

Describe the bug
Foliate crashed randomly whilst reading and doesn't start now.
I tried narrowing down the issue and found that when removing the .json file from my (only) book in the library, foliate works as expected. I haven't modified the file manually, which means foliate somehow produced a file it can't process.

To Reproduce
Steps to reproduce the behavior:
I have linked to files, the first one is the JSON file of the book. I don't know if it's enough to reproduce, that's why I've also uploaded my whole /home/user/.local/com.github.johnfactotum.Foliate folder. Note that it is a tar archive, but the suffix is .pdf because GitHub didn't let me upload a tar archive. To reproduce, use the folder / JSON file when starting foliate (put it in .local/share)
978-0-440-33906-9.json
foobar.pdf

Expected behavior

1. Don't create faulty JSON files
2. Even if there is a faulty JSON file, foliate shouldn't crash

Screenshots
None

Version:
System: Arch Linux rolling
Desktop: Hyprland
Session: hyprland (wayland)
Language: en_US.UTF-8

Versions:

• Foliate 3.2.1
• GJS 1.82.01
• GTK 4.16.12
• Adwaita 1.6.3
• GLib 2.82.4
• WebKitGTK 2.46.5

User directories:

• /home/nando/.local/share
• /home/nando/.cache

Additional context
Coredump (remove .pdf suffix): core.foliate.1000.6f0b245f9aab4b0ea7be507a01296772.128936.1737936012000000.zst.pdf

Thanks for this great app :)

[dryBoneMarrow]

I could narrow it down further: Deleting the two last annotations in the JSON file makes the problem go away

[dryBoneMarrow]

I could narrow it down further: deleting any two annotations in the JSON file makes the problem go away, that is weird