WYSIWYG editor causes content loss in computed fields when adding a macro

On pages using the  class with computed fields, adding a macro in computed field causes the content to disappear.

The issue does not occur on standard pages, only on pages where content is stored or rendered via computed/object-based fields.

Steps to reproduce

1. Open an  page that uses a class containing a computed field
2. Edit the page
3. Add a macro into  property  that uses computed field in the WYSIWYG editor using the XWiki macro tool. 

Actual result

• Field content disappears

Expected result

• Content should remain intact adding a macro and the macro should be added
• Computed fields should preserve their content or at least not be overwritten/lost

Environment

• XWiki version: 17.x (regression observed after upgrade from 16.4.6)
• Editor: CKEditor (WYSIWYG)
• Page type: Article class pages with computed fields
• Macro tried: PDF Viewer: PDF Viewer Pro 2.2.1