--bs-nav-link-font-weight variable missing in .nav class, v5.2.0-beta1.

[SamuelMiller]

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

As shown below, the css variable --bs-nav-link-font-weight is left blank (line 3826), no value/string is given in Bootstrap v5.2.0-beta1, installed via npm.

.nav {
  --bs-nav-link-padding-x: 1rem;
  --bs-nav-link-padding-y: 0.5rem;
  --bs-nav-link-font-weight: ;
  --bs-nav-link-color: var(--bs-link-color);
  --bs-nav-link-hover-color: var(--bs-link-hover-color);
  --bs-nav-link-disabled-color: #6c757d;
  display: flex;
  flex-wrap: wrap;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

--bs-nav-link-font-weight is used in .nav-link to set font-weight:

.nav-link {
  display: block;
  padding: var(--bs-nav-link-padding-y) var(--bs-nav-link-padding-x);
  font-size: var(--bs-nav-link-font-size);
  font-weight: var(--bs-nav-link-font-weight);
  color: var(--bs-nav-link-color);
  text-decoration: none;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

Reduced test cases

See above.

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

macOS

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

Chrome

What version of Bootstrap are you using?

v5.2

[julien-deramond]

Thanks for reporting this issue @SamuelMiller.
IMO it is done on purpose as explained in the description of #31035 (for $nav-link-font-size and $nav-link-font-weight).
It is null by default because not needed in Bootstrap style but can be set by projects by overriding $nav-link-font-weight and/or $nav-link-font-weight.

While checking this issue I may have found an issue but regarding .navbar-nav and proposed #36689
This is not a real duplicate but in the same spirit as #36595

[mdo]

Closing as duplicate of #36595. Same problem to solve here.