Bug when deleting document content

[cedricenclos]

• I'm submitting a ...

  • [x] bug report
  • [ ] feature request
  • [ ] support request => Please do not submit support request here, see note at the top of this template.

• What is the current behavior?

When you delete all the document and reload it, this error occurs :

Unhandled Promise rejection:  ; Zone: <root> ; Task: Promise.then ; Value: Error
    at Function.createMuteCore (main.2981f1098e7803b94487.js:1)
    at ....... 

(this is the message on Chrome's console)