TinaCMS content update

Co-authored-by: Caleb Williams <CalebWilliams@ssw.com.au>

Author: tina-cloud-app[bot]

content/docs/extending-tina/filename-customization.mdx

@@ -1,7 +1,8 @@
 ---
 id: /docs/extending-tina/filename-customization
 title: Filename customization
-last_edited: '2026-02-04T22:07:08.458Z'
+alias: Any-
+last_edited: '2026-02-04T22:10:34.270Z'
 next: content/docs/extending-tina/before-submit.mdx
 previous: content/docs/extending-tina/format-and-parse.mdx
 ---
@@ -74,6 +75,12 @@ export default defineConfig({
 })
 ```
 
+<WarningCallout
+  body={<>
+    The slugify function is only applies constraints when the user creates new files. Users still have complete freedom when renaming a file.
+  </>}
+/>
+
 ### Example with default slugify
 
 If no slugify function is provided and there is a field with `isTitle: true`. A default slugify function will be used that strips out every non-alphanumeric character and replaces spaces with dashes.