Open Radar

 
Summary: Text copied from any iOS multi-line text field and then pasted into a web form text area has its spaces replaced with &nbsp<space>. Causes interference with space-significant text such as Markdown or Python

Steps to Reproduce: 
1. enter text into an app, such as the built-in Notes app as follows:
"Some Text

    Some code
    some more code

Some more text"
(note that the 2 indented 'code' lines are indented with 4 spaces)

2. Select and copy all of the text

3. John Gruber's Markdown Dingus is a handy test bed, load http://daringfireball.net/projects/markdown/dingus in Mobile Safari

4. Paste the copied text into the "Markdown source" text area and press the "Convert" button

5. See "HTML Source" text area for results and below.

Expected Results:
The above text *should* produce the following HTML:

<p>Some Text</p>

<pre><code>Some code
some more code
</code></pre>

<p>Some more text</p>

The indented lines are wrapped in <pre><code> tags.


Actual Results:
This is the html produced instead:

<p>Some Text</p>

<p>    Some code
    some more code</p>

<p>Some more text</p>

because the spaces have been replaced with a space and a non-breaking space htmlentitiy, the spaces are not correctly interpreted by Markdown.


Regression:
I have tested this with my iPhone 4 and The New iPad, both behave this way every time.

Notes:
If you paste the text and manually delete/replace the spaces before submitting the form, it works normally.