Toolbar buttons loose focus when calling quill.updateContents(delta)

[benbro]

An open dropdown list like fonts or colors loose focus when calling quill.updateContents(delta).
This is a problem when collaborating when another user and applying the OT changes.

Steps for Reproduction

1. Visit http://beta.quilljs.com/
2. Click on the font button to open the font dropdown.
3. Call quill.updateContents(delta) in the console with some delta:

quill.updateContents({
  ops: [
    { retain: 6 },
    { delete: 5 },
    { insert: 'Quill' }
  ]
});

Expected behavior:
The font dropdown should stay opened.

Actual behavior:
The font dropdown is closed.

Platforms:
Firefox 46 on Windows 7

Version:
1.0-beta.4

[jhchen]

Sorry that commit has a typo #743 was fixed not this issue