Issue: Lists sometimes get modified when saving

I just realized it happens if you preview a page with a list on it and then save after previewing.

Fixed in the next release. This is in part due to the highly popular method of using preg_replace in order to handle WYSIWYG parsing as a string, rather than the less error-prone method of creating a DOM tree and adding/removing nodes. Proper DOM tree handling would be able to track current open tags and fake markup that has already been added, rather than trying to guess using string patterns. However, XenForo is designed with preg_replace and it works fine enough in regular posts that it wouldn't care to make this design change.

This creates a conflict because VaultWiki defers line-break conversion until after all other BB-Codes have been parsed (to account for templates, etc), which screws up the expected output for the step of the WYSIWYG parser that strips fake markup. However, not only is this consideration not necessary in WYSIWYG (nested templates would never be parsed in WYSIWYG mode), but this practice is error-prone already as it breaks at least the PHP tag that I have seen. Further, deferment should not be necessary since VaultWiki uses fake tags to embed parser states for the compile step, so it can do the same to suppress later line-break conversion if it was already performed.

The change is already applied on your site. Please let me know if you notice any unexpected side effects in other parsed code.

There are still two problems with this.

1. Lists are still previewed incorrectly, as if they are not lists. Only line breaks are shown.
2. When I save the page, there is an extra list item added to the top of the list. The weird thing is, when I go to edit the page afterward, the bb code is correct. So somehow the page is getting saved incorrectly, but the bb code itself is not changing.

I tested with this page. It still shows the extra list item at the top of each list.

This page got really messed up after I saved it. But once again, the source code looks fine.

#1 is a styling/CSS issue on the preview page. I may not be able to fix this completely without modifying the style templates.

#2 looks like an issue in the BB-Code parser. I have rewritten a huge chunk of the parser to try to handle this. Since it's a pretty massive rewrite, I no doubt broke things (especially things in templates). First clear the page cache in the Admin Panel under Integrity > Counters. Then I would suggest checking that pages containing templates still work as expected, and that you can't break any of the rules implemented by either template area's or the page's area's Parsing Options.

This page has a template, and it's not being rendered correctly. The html is showing directly instead of being parsed I think.

Edit: The lists show correctly in the preview now.

Content passed as template arguments should be parsed correctly again.