Redundant blank lines following specific formatting

Nobody has claimed this yet.

**1. The third level of a nested list**

```markdown
* Thing A
* Thing A-a
* A-a-1
* A-a-2
* A-a-3
* Thing B
* Thing C
```

What I expect is:

* Thing A
* Thing A-a
* A-a-1
* A-a-2
* A-a-3
* Thing B
* Thing C

However I see this instead:

* Thing A
* Thing A-a
* A-a-1
* A-a-2
* A-a-3

* Thing B
* Thing C

**2. Embedded hyperlinks in lists**

```markdown
1. [Link](https://github.com/)
* A
* B
```

Should be:

1. [Link](https://github.com/)
* A
* B

But I see:

1. [Link](https://github.com/)

* A
* B

When I remove the hyperlink, it becomes normal:

1. [Link]
* A
* B

These phenomenons cannot be reproduced neither in other markdown editors nor on GitHub. Hence I suspect that it could be a bug which needs fixing.

I am using Version 0.7.1 and CSS style of GitHub2. It probably needs only a simple revision of the CSS file but I have no knowledge about how to do that. Please enlighten me if that's the case.

Start with the GitHub2 CSS style and the Markdown rendering path in MacDown, using the two nested-list examples as reproduction cases. Compare the rendered output for third-level nested lists and linked list items with the expected output; done means the redundant blank lines no longer appear in Version 0.7.1-style rendering.

Written by the indexing model from the issue text.