Comment 1 for bug 1152441

As part of this functionality, when you delete a note from the Notes page, you should be able to leave its text as unlinked text in all the text blocks that are using it.

That should probably be the default behavior. In fact, I'm not entirely sure we even need to make it an option... although probably there is someone out there with a workflow that depends on the ability to remove a whole bunch of identical text blocks on many pages all at once.