Issue with multiline fixed-width blocks

[Venemo]

MarkPad renders the following:

line 1
line 2
```

in a single line.

[kingeimho]

MarkPad renders the following:

line 1 line 2

in a single line.

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2016年7月21日 20:31於 "Timur Kristóf" notifications@github.com寫道：

MarkPad renders the following:

line 1 line 2

in a single line.

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[Venemo]

I would expect it to render that in multiple lines, in the same way as it works on GitHub and other places. :)