Tables can be broken when line break syntax \\ is replaced with new line \n inside table cells

Consider this XWiki 2.0 input:

|x\\= h =|y

which is translated into:

<table><tr><td>x<br/>= h =</td><td>y</td></tr></table>

and then parsed back in:

|x
= h =|y

As you can see, a consequence of the round trip is the replacement of \ \ (line break) with \n (new line). The XHTML output becomes:

<table><tr><td>x</td></tr></table><h1 id="Hh"><span>h</span></h1><p>|y</p>

which is not what we expected.