Fix handling of draft term pages

By just removing the term page and all of its page entries.

Fixes #12055

hugolib/content_map_page.go

@@ -1415,8 +1415,10 @@ func (sa *sitePagesAssembler) applyAggregatesToTaxonomiesAndTerms() error {
 					if err := p.setMetaPost(cascade); err != nil {
 						return false, err
 					}
-
-					if err := sa.pageMap.treeTaxonomyEntries.WalkPrefix(
+					if !p.s.shouldBuild(p) {
+						sa.pageMap.treePages.Delete(s)
+						sa.pageMap.treeTaxonomyEntries.DeletePrefix(paths.AddTrailingSlash(s))
+					} else if err := sa.pageMap.treeTaxonomyEntries.WalkPrefix(
 						doctree.LockTypeRead,
 						paths.AddTrailingSlash(s),
 						func(ss string, wn *weightedContentNode) (bool, error) {

hugolib/taxonomy_test.go

@@ -835,3 +835,26 @@ tags: ["hellO world"]
 
 	b.AssertFileContent("public/tags/hello-world/index.html", "HellO World|term|tag|tags|hellO world|")
 }
+
+func TestTermDraft(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- layouts/_default/list.html --
+|{{ .Title }}|
+-- content/p1.md --
+---
+title: p1
+tags: [a]
+---
+-- content/tags/a/_index.md --
+---
+title: tag-a-title-override
+draft: true
+---
+  `
+
+	b := Test(t, files)
+
+	b.AssertFileExists("public/tags/a/index.html", false)
+}