Sticky navigation tabs have wrong spacing in Insiders 4.15.2+

Contribution guidelines

• I’ve read the contribution guidelines and wholeheartedly agree

I’ve found a bug and checked that …

• … the problem doesn’t occur with the mkdocs or readthedocs themes
• … the problem persists when all overrides are removed, i.e. custom_dir, extra_javascript and extra_css
• … the documentation does not mention anything about my problem
• … there are no open or closed issues that are related to my problem

Description

In mkdocs-material-8.2.15-insiders-4.15.2 the top nav menu is small.

It was ok in mkdocs-material-8.2.15-insiders-4.15.1 (rolling back to that version fixed it)

Expected behaviour

A nicely-tyled top nav

Actual behaviour

A not-nicely styled top nav

Steps to reproduce

1. Install mkdocs-material-8.2.15-insiders-4.15.2
2. Build or serve

Package versions

• Python: 3.10.2
• MkDocs: 1.3.0
• Material: mkdocs-material-8.2.15-insiders-4.15.2 (note that I haven’t tried with non-insiders)

Configuration

https://github.com/n8n-io/n8n-docs/blob/main/mkdocs.yml (I have tested it without the extra_css)

System information

• Browsers: tested in Chrome, Firefox, Edge
• My OS is Windows 10, but this is also happening on our live site, which is built by Netlify (their build image is Ubuntu-based I believe)

[squidfunk]

Released as part of 8.2.16+insiders-4.16.1.

[squidfunk]

Fixed in d3c587b. This bug was exclusive to Insiders and was introduced with the release of navigation.prune. The tabs items received the wrong classes when tabs were made sticky, as they are now rendered as part of the header partial. This partial defined a Jinja class variable that leaked into the tabs item partial. Classes are now properly cleared.