Copy & paste of <h1>1</h1>\n<p>2</p> behaves differently to <h1>1</h1><p>2</p>

[XFFA.IR Bot]

If you copy & paste from a HTML document with this sort of structure:
HTML:

<html><head></head>
<body>
<h1>1</h1>
<p>2</p>
</body></html>

It results in:

with newline said:

1​

2
Click to expand...

But if you copy & paste the following structure (no newline between <h1 & ><p> tags:
HTML:

<html><head></head>
<body>
<h1>header</h1><p>Lorem ipsum</p>
</body></html>

It results in:

with new line said:

1​

2
Click to expand...

The linebreaks typically show up when copying HTML from firefox, while chrome will strip newlines between tags.