Horizontal line moved outside blockquote

[Krzysztof Studnik]

Test case:

• enter two paragraphs of text
• set cursor at the end of first paragraph
• insert horizontal line

Result of above should be:

<p>test1</p>
<hr />
<p>test2</p>

• Press "select all" or Crel+A
• press "Block Quote" button

Selected text is set as quote, but horizontal line is moved outside quotation
Actual result

<blockquote>
	<p>text^</p>
	<p>test</p>
</blockquote>
<hr />

Expected result

<blockquote>
	<p>text^</p>
	<hr />
	<p>test</p>
</blockquote>

[Piotrek Koszuliński]

Still reproducible on 4.3.2.