Error on Save: `Invalid User Action: ResetCursor`

[steveruizok]

Uncaught Error: Invalid user action: "ResetCursor"
    at i._userAction (copenhagen.0-1-4.min.js:1)
    at i.userAction (copenhagen.0-1-4.min.js:1)
    at i.setValue (copenhagen.0-1-4.min.js:1)
    at i.save (copenhagen.0-1-4.min.js:1)
    at i.ctrl+s (copenhagen.0-1-4.min.js:1)
    at i.shortcut (copenhagen.0-1-4.min.js:1)
    at i.keydown (copenhagen.0-1-4.min.js:1)
    at i.<anonymous> (copenhagen.0-1-4.min.js:1)
    at HTMLTextAreaElement.<anonymous> (copenhagen.0-1-4.min.js:1)

The editor throws the above error after pressing Command + S.

See example here.