Active Nav Tabs are not displayed correctly in the current main branch

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

current release looks good https://getbootstrap.com/docs/5.1/components/navs-tabs/#javascript-behavior

current brunch looks bad https://twbs-bootstrap.netlify.app/docs/5.1/components/navs-tabs/#javascript-behavior

Reduced test cases

https://getbootstrap.com/docs/5.1/components/navs-tabs/#javascript-behavior https://twbs-bootstrap.netlify.app/docs/5.1/components/navs-tabs/#javascript-behavior

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome, Firefox, Microsoft Edge

What version of Bootstrap are you using?

v5.1.3 and Current main Brunch