Wrong cursor position in Markdown editor for Unicode

[RobGThai]

Cursor position messed up in markdown editor as seen in the screenshot below.

Issue Summary

A summary of the issue and the browser/OS environment in which it occurs. If
suitable, include the steps required to reproduce the bug.

Steps to Reproduce

1. Copy this into the editor "ทดสอบการกรอก ข้อมูลภาษาไทย ว่าสามารถแสดงผลได้ถูกต้องหรือไม่"
2. Make sure the sentence got wrapped on to multiple line.
3. Move cursor to the second line and try editing. The cursor will most likely be on the whitespace.

Expected outcome:

Cursor should be in the correct place.

Technical details:

• Ghost Version: trial
• Client OS: Mac OS X 10.9.1
• Browser: Chrome 32.0.1700.107

[ErisDS]

I think that this is a duplicate of #2184, although this issue is much clearer thanks 👍

I believe both of these issues are caused by the following issue with CodeMirror : codemirror/codemirror5#2115

[JohnONolan]

I don't believe we're going to progress with this - next editor iteration won't use codemirror. Suggest close

[ErisDS]

Closed as wontfix against #1294