hugolib: Do not FirstUpper taxonomy titles

Doing so was probably a mistake. This may be a breaking change for some people,
but it's easy to restore the previous behaviour in the layouts.

Fixes #5172

1 files changed, 8 insertions, 1 deletions

diff --git a/docs/content/en/content-management/taxonomies.md b/docs/content/en/content-management/taxonomies.md
index 629fab94d..8260cfc1f 100644
--- a/docs/content/en/content-management/taxonomies.md
+++ b/docs/content/en/content-management/taxonomies.md
@@ -139,7 +139,7 @@ If you want to disable all taxonomies altogether, see the use of `disableKinds`
 
 By default, taxonomy names are normalized.
 
-Therefore, if you want to have a taxonomy term with special characters such as `Gérard Depardieu` instead of `Gerard Depardieu`, set the value for `preserveTaxonomyNames` to `true` in your [site config][config]. Hugo will then preserve special characters in taxonomy values but will still title-ize the values for titles and normalize them in URLs.
+Therefore, if you want to have a taxonomy term with special characters such as `Gérard Depardieu` instead of `Gerard Depardieu`, set the value for `preserveTaxonomyNames` to `true` in your [site config][config]. Hugo will then preserve special characters in taxonomy values but will still normalize them in URLs.
 
 Note that if you use `preserveTaxonomyNames` and intend to manually construct URLs to the archive pages, you will need to pass the taxonomy values through the [`urlize` template function][].
 
@@ -149,6 +149,12 @@ You can add content and front matter to your taxonomy list and taxonomy terms pa
 Much like regular pages, taxonomy list [permalinks](/content-management/urls/) are configurable, but taxonomy term page permalinks are not.
 {{% /note %}}
 
+{{% warning "`preserveTaxonomyNames` behaviour change" %}}
+Before 0.49, Hugo would title-ize the taxonomy values for titles even if `preserveTaxonomyNames` was active. This no longer the case, which (for instance) makes it possible to have fully lower-case values.
+
+If you actually need to title-ize these values, you can do so using the [`title` template function][].
+{{% /warning %}}
+
 ## Add Taxonomies to Content
 
 Once a taxonomy is defined at the site level, any piece of content can be assigned to it, regardless of [content type][] or [content section][].
@@ -205,6 +211,7 @@ If you need to add custom metadata to your taxonomy terms, you will need to crea
 
 You can later use your custom metadata as shown in the [Taxonomy Terms Templates documentation](/templates/taxonomy-templates/#displaying-custom-metadata-in-taxonomy-terms-templates).
 
+[`title` template function]: /functions/title/
 [`urlize` template function]: /functions/urlize/
 [content section]: /content-management/sections/
 [content type]: /content-management/types/