fix: guard RenamePost against self-rename (noop)

1 files changed, 3 insertions, 0 deletions

diff --git a/internal/db/posts.go b/internal/db/posts.go
index d391c3e..c1360ab 100644
--- a/internal/db/posts.go
+++ b/internal/db/posts.go
@@ -141,6 +141,9 @@ func (m *MetaDB) CollapseRedirects(oldSlug, newSlug string) error {
 // RenamePost atomically renames a post from oldSlug to newSlug,
 // updates any existing redirect chains, and adds a redirect from oldSlug to newSlug.
 func (m *MetaDB) RenamePost(oldSlug, newSlug string) error {
+	if oldSlug == newSlug {
+		return nil
+	}
 	tx, err := m.db.Begin()
 	if err != nil {
 		return err