shithub: hugo

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hugolib: Fix deletion of orphaned sections

Avoid deleting inside the recursive walk.

Fixes #6920

--- a/hugolib/content_map.go

+++ b/hugolib/content_map.go

@@ -596,6 +596,7 @@

 // Deletes any empty root section that's not backed by a content file.

 func (m *contentMap) deleteOrphanSections() {

+	var sectionsToDelete []string

 	m.sections.Walk(func(s string, v interface{}) bool {

 		n := v.(*contentNode)

@@ -612,11 +613,15 @@

 		prefixBundle := s + cmBranchSeparator

 		if !(m.sections.hasPrefix(s+"/") || m.pages.hasPrefix(prefixBundle) || m.resources.hasPrefix(prefixBundle)) {

-			m.sections.Delete(s)

+			sectionsToDelete = append(sectionsToDelete, s)

 		}

 		return false

 	})

+

+	for _, s := range sectionsToDelete {

+		m.sections.Delete(s)

+	}

 }

 func (m *contentMap) deletePage(s string) {