Upgraded plugin versions breaks edit functionality

The latest version upgrades the plugins to 4.7.0. As you can see from the "link" project page (http://ckeditor.com/addon/link), it does not support version 4.6.2 which is what Drupal 8.3.x ships with.

Steps to reproduce the bug:

- Write some text.
- Create a link in it.
- Try to edit the link.

Also illustrated in the attachment.

This is due to the fact that the newest version uses selection.isInTable, which is a method only available in 4.7.0 and later. (http://docs.ckeditor.com/#!/api/CKEDITOR.dom.selection-method-isInTable)

Proposed solution: Revert back to 4.6.2 version for this module.

Thoughts?