CKEditor on [Webkit/Blink] drops cursor when changes in one editor update another

[David]

1. Go to ​http://ckeditor.com/demo#inline on a Webkit-based browser
2. Bind contents of editor1 and editor2 on a key listener

   CKEDITOR.instances.editor1.on("key", function() { CKEDITOR.instances.editor2.setData(CKEDITOR.instances.editor1.getData()) });
   

3. Update editor1 text.

Expected: editor2 updates. editor1 cursor remains at original place. Observed: editor2 updates. editor1 cursor goes back to start of editor.

Screencast attached. Firefox works fine.

[David]

Screencast of issue

[David]

Further debugging found the issue in CKEditor in selection.js - line 452.

Webkit's selection will mess up after the data loading.

CKEDITOR.env.webkit && editor.on( 'setData', clearSelection );

Would it be enough to only clear the selection if the selection is in the current element?

Is there any possible workaround that can be provided as this issue is blocking us.

[mffiedler]

Add CC

[Jakub Ś]

Problem can be reproduced from CKEditor 4.0 beta in Webkit and Blink in inline editors only.