Thread:Extension talk:Header Tabs/Numbered List Issues

In Internet Explorer 8 and above, HeaderTabs appears to cause numbered lists to behave badly. To reproduce, create a page with two tabs, each with a numbered list. Initially, the numbered lists appear correctly. When the user clicks the second tab, and then clicks back to the first tab, the numbers all reset to 0. This does not happen when IE is forced into Quirks mode, and does not happen in Chrome. This is with the latest Git master of HeaderTabs and MediaWiki 1.21.1.