Fragments in URLs break sidebar auto-scrolling

[ehuss]

Problem

If you load a URL with a fragment in it, the sidebar does not auto-scroll correctly. When loading the page, it should automatically scroll the sidebar into the current page's position (in the middle of the screen IIRC).

@notriddle Is this something you can look at? I believe this regressed from #2414 (though I haven't bisected).

Steps

Example that works: https://doc.rust-lang.org/1.83.0/reference/expressions.html#expression-precedence
Example that doesn't work: https://doc.rust-lang.org/nightly/reference/expressions.html#expression-precedence
Example that works in all versions (no fragment): https://doc.rust-lang.org/nightly/reference/expressions.html

Possible Solution(s)

No response

Notes

No response

Version

mdbook v0.4.43
and
mdbook v0.4.42

Tested on multiple browsers.