quill.format(name, value) with a 0 length selection causes cursor jump.

[nikparo]

quill.format(name, value) with a 0 length selection causes the cursor to jump forward. If you type, it jumps ahead by one. If you paste something, it jumps forward by the length of what you pasted.
e.g.
ab|cdef -> abQc|def
ab|cdef -> ab123cde|f

Steps for Reproduction

1. Go to https://quilljs.com/playground/
2. Type something in.
3. Place the cursor somewhere in the middle.
4. Click bold, and hit a key.

Expected behavior:
Cursor stays just ahead of what you typed.

Actual behavior:
Cursor jumps ahead by one (and any further characters won't be bold).

Platforms:
Linux, Firefox 50.0
Linux, Chromium Version 54.0.2840.100 (64-bit)

Version:
Quill 1.1.6