TYPO3 Core

When nesting ordered and unordered lists, the RTE produces markup like this:

<ul>
<li>List item</li>
<li>List item</li>
<ol>
<li>List item</li>
</ol>
<li>List item</li>
</ul>

But , <ol> and <ul> (and, for that matter, any other elements except <li>) are not permitted immediately inside <ol>/<ul> elements. The correct markup would be like this:

<ul>
<li>List item</li>
<li>List item
<ol>
<li>List item</li>
</ol>
</li>
<li>List item</li>
</ul>

...in other words, the nested list should be wrapped in one of the <li> elements from the outer list. Unless I'm mistaken, this can't be adjusted in the RTE config.

(issue imported from #M360)