Colating ordered and unordered lists indent incorrectly

[mxgl]

When mixing ordered and unordered lists, indentation happens incorrectly.

When switching list types an extra layer of indentation occurs that shouldn't.

Indentation should be based on whitespace rather than the previous list item's type

It appears this was intended to have been fixed in #437, but is broken again.

1. Sample
2. List Item
    * A Sublist
    1. Now we order
    1. a list of things
    * Same level sublist
        1. Deeper we go

Parsedown's interpretation

Commonmark's interpretaion permalink

Live on Github:

1. Sample
2. List Item
   • A Sublist
   1. Now we order
   2. a list of things
   • Same level sublist
     1. Deeper we go