Pagebreak integration with PFW doesn't work when dynamically loading plugin

[Comandeer]

Type of report

Bug

Provide detailed reproduction steps (if any)

1. Open https://jsfiddle.net/Comandeer/gb497f1s/
2. Paste linked Word document content into the editor.
3. Check if there is a page break inside the editor.

Expected result

Page break is present.

Actual result

There is no page break inside the editor.

Other details

• CKEditor version: 4.12.0
• Installed CKEditor plugins: pastefromword, pagebreak

Seems like something's messed up during loading pagebreak plugin via extraPlugins option.

[f1ames]

The quick workaround is to add extraAllowedContent when initializing editor like:

CKEDITOR.replace( 'editor', {
  extraPlugins: 'pagebreak',
  extraAllowedContent: 'div'
} );

[Comandeer]

After some investigation it seems that the issue is with PFW filter itself. It detects br with page break styles and change it to div. However the same filter then picks up this div and modify it even further, resulting finally in deleting the div.

[f1ames]

Fixed in 64749bb.