Issue Summary

Using the new editor, pasting markdown code will only convert it to the respective styled text depending on the source the code was copied.

Environment

New editor and Old editor

Steps to Reproduce

1. Copy the code below

   Heading
   =======
   
   ## Sub-heading
   
   Paragraphs are separated
   by a blank line.
   
   Two spaces at the end of a line  
   produces a line break.
   
   Text attributes _italic_, 
   **bold**, `monospace`.
   
   Horizontal rule:
   
   ---
   
   Bullet list:
   
     * apples
     * oranges
     * pears
   
   Numbered list:
   
     1. wash
     2. rinse
     3. repeat
   
   A [link][example].
   
     [example]: http://example.com
   
   ![Image](Icon-pictures.png "icon")
   
   > Markdown uses email-style > characters for blockquoting.

2. Paste it on a page with the new editor

Expected Results

The code should be converted to styled text

Actual Results

Depending on the source, it will not convert.
E.g.: Copying from Sublime text editor, it will work, but not from the terminal (vim).

Notes

• At some point drop down for the type of markup was not honored on insert

Workaround

Copy the code to a text editor first (e.g. sublime text) and then insert the code on the page.