Issue Summary

When creating a list with numbers and parenthesis but opting out of the Numbered list functionality, the numbered list is enforced upon card description save action.

This issue concerns any card descriptions that were previously created because whenever a user opens the editing mode of an existing description to copy the text, the numbered list gets automatically enforced.  

Steps to Reproduce

1. In a card description, start typing "1)" and a space to see that a numbered list is enforced
2. Use the "Cmd+Z" shortcut on Mac (or Ctrl+Z on Windows) to undo the applied numbered list
3. Select return and type "2)" and a space to see that a numbered list is enforced
4. Follow Step 2 above again.
5. Save the card description. 
6. Click the description area to open the editing mode.

Expected Results

The list with numbers and parenthesis is in state you saved it after editing. 

Actual Results

The list with numbers and parenthesis turned into a numbered list. 

Workaround

Use dots instead of parenthesis for your lists without applying the editor's numbered lists.