The list properties toolbar is overriden by List plugin

[pomek]

📝 Provide detailed reproduction steps (if any)

Create an editor containing the plugins in the exact order: [ ..., ListProperties, List, ... ].

To reproduce the issue, you can use the following manual test.

ckeditor5/packages/ckeditor5-list/tests/manual/documentlist-properties.js

Line 49 in 1b3913c

CloudServices, SourceEditing, List, ListProperties

✔️ Expected result

The ∨ symbol should be visible.

❌ Actual result

The ListUI overrides existing icons. The ∨ symbol is not visible.

❓ Possible solution

In the past (#7861), we agreed to override icon toolbars. While it makes sense when handling List => ListProperties, it does not make sense for ListProperties => List.

📃 Other details

• Browser: …
• OS: …
• First affected CKEditor version: …
• Installed CKEditor plugins: …

---

If you'd like to see this fixed sooner, add a 👍 reaction to this post.