[wp-trac] [WordPress Trac] #41259: Editing an image link in the Editor produces one additional, empty link

[WordPress Trac]

#41259: Editing an image link in the Editor produces one additional, empty link
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 Reporter:  afercia       |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:  4.8
 Severity:  normal        |   Keywords:  has-screenshots
  Focuses:                |
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 I can reproduce this consistently in WordPress 4.8 but only using Chrome
 (v. 59) or Safari (10) and '''only if an image is the first thing in the
 post content'''. To reproduce:

 - insert an image as first thing in the content
 - when inserting the image, link it to the "Attachment Page"
 - save the post
 - on the front-end, inspect the HTML: everything looks fine
 - edit the post and update the image link to, for example, "Media File" or
 set a "Custom URL"
 - save the post
 - inspect the HTML in the front end: the previous link to the "Attachment
 Page" is still there (before the image) and it's empty

 Seems this happens whatever link is set. Tested on two different machines,
 macOS and Windows. Couldn't reproduce using Firefox, so seems something
 specific to webkit browsers. Couldn't reproduce in WordPress 4.7.

 Note: you can't see the doubled, empty link switching the Editor to "Text
 mode" because TinyMCE will strip it out. Not sure why the empty link
 doesn't get removed when saving the post.

 Screenshots:

 [[Image(https://cldup.com/-fHYEoCUPd.png)]]

 Happens also with an image after another image:

 [[Image(https://cldup.com/0FKdDgTHwr.png)]]

 On Windows:

 [[Image(https://cldup.com/7SR2nTCIJK.png)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/41259>
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