Cannot remove link once created

[jkuchar]

Steps to reproduce:

• Write some text
• select something, click link and write http://example.com
• link is created
• now try to remove it by selecting text, clicking link again and deleting URL (empty input is left)

Actual behaviour:

Link is still there refering to editor URL.

Expected behaviour:

Link should be gone.

Browser: Safari/Mac

[dxhuii]

现在依旧有这个问题。