Selecting all emojis in Custom emoji is impossible

[iambeingtracked]

💡 Summary

It is impossible to select all emojis via the 'Select all' button on https://misskey.instance.tld/admin/emojis
Clicking the button also produces this in the browser's Console

🥰 Expected Behavior

Select all should select all of the emojis

🤬 Actual Behavior

In reality it deselects all of them

📝 Steps to Reproduce

1. Go to https://misskey.instance.tld/admin/emojis
2. Enter select mode
3. Press "Select all"

📌 Environment

💻 Frontend

• Model and OS of the device(s):
• Browser: Firefox 115.0.
• Server URL:
  my own, but it also happens on an another instance, that is however Calckey
• Misskey:
  13.14.1

🛰 Backend (for server admin)

• Installation Method or Hosting Service:
• Misskey: 13.14.1
• Node: 20.5.0
• PostgreSQL: 15.
  Alpine 3.18 in LXC