Markdown list is shifted as sublist with guide syntax

Pre-condition:
1. User is logged in Antarticle
2. 'New Article' creation form is opened
Steps to reproduce:
1. Insert list creation syntax from Markdown syntax reference

1. First ordered list item
2. Another item
  * Unordered sub-list.
1. Actual numbers don't matter, just that it's a number
4. And another item.
   Some text that should be aligned with the above item.

* Unordered list can use asterisks
- Or minuses
+ Or pluses

2. Click [Create Article] or open <Preview> tab
Actual result:
Second numerated list is shifted (see attach)
Expected result: According to Markdown syntax guide Second numerated list should be aligned with the above numerated list.
OR
It seems like problem of the Markdown Syntax guide, because according to the same guide Text placed in the same paragraph should be aligned with the above item. (see attach2)