Verbatim blocks are parsed back incorrectly

The following verbatim block:

{{{one
two}}}

is translated into:

<pre>one two</pre>

which is rendered fine in view mode (the space between one and two is in fact a new line). Firefox replaces the new lines with a BRs in edit mode so when you save from WYSIWYG this:

<pre>one<br/>two</pre>

is translated into:

\\

{{{onetwo}}}

So it seems the verbatim block is recomputed using only the inner text and the BRs are parsed separately.