Link doesn't overwrite links in the current selection

[mlewand]

Are you reporting a feature or a bug?

Bug

Provide detailed reproduction steps (if any)

1. Open CKEditor.
2. Using "Source" button set the content to <p>Sample&nbsp;<a href="https://foo/bar/baz">https://foo/bar/baz</a> link.</p>.
3. Go back to WYSIWYG mode by clicking "Source" button again.
4. Put the caret at position Sample https://foo/bar/baz^ link.
5. Press backspace three times so that "baz" is removed.
6. Type "bom" (note: it gets typed as a plain text, due to Chrome's link handling).
7. Make a following selectionSample [https://foo/bar/bom] link. using mouse.
8. Click on link button.
9. Set URL value to foo/bar/bom.
10. Click OK.

Expected result

New URL gets applied to the whole "https://foo/bar/bom" text. Text contains a single a element.

Actual result

"https://foo/bar/bom" URL is applied only to "bom" part, while original link still exists. There are two a elements.

Following source is being produced:

<p>Sample&nbsp;<a href="https://foo/bar/baz">https://foo/bar/</a><a href="https://foo/bar/bom">bom</a>&nbsp;link.</p>

Other details

• Browser: Chrome

Example screencast at https://www.useloom.com/share/d48c0987970d4339bd7bb9ad28cd6567