CKEditor makes nested Entries writable

[TurboThomsen]

Describe the bug

Expected Behavior: The CKEditor and other fields should remain in readonly mode inside the Matrix block (now Entry).

Actual Behavior: The readonly mode gets disabled of the entry the CKEditor is in, when nested inside a Matrix field (block view).

Steps to reproduce

1. Create a EntryType with CKEditor field inside
2. Create a Field "Matrix" with the new EntryType (block view)
3. Create an Entry with the new Field in the FieldLayout
4. Login as an User without permission to edit the entry (readOnly mode)
5. Open the entry:
   a) On Reload everything is fine
   b) After few seconds the matrix block (entry) is writable

Craft CMS version

5.10.5

Plugin version

3.0.16

Multi-site?

Yes

Additional context

There are many "update-field-layout" requests in the network tab.