Steps:

1. go to Content/Content structure
2. Click and select Article
3. Type 'Test' in Intro field
4. Highlight typed text and click Link button
5. Type link: www.ez.no, select Open in new tab and save
6. Click Publish
7. Click added link

Video: http://g.recordit.co/j79RqZNry4.gif

Actual result:

Link wasn't saved. User is redirected to the same page. When user goes to edit mode - link is not saved at all.

Expected result:

Link is saved. User is redirected to the chosen page.