update

Author: LadyBluenotes

src/routes/reference/store-utilities/unwrap.mdx

@@ -41,10 +41,12 @@ Unwrapped value.
 
 ## Behavior
 
-- Store proxies are removed recursively from returned objects and arrays.
-- Returned objects and arrays are plain values rather than reactive store proxies.
+- `unwrap` removes store proxies recursively and returns underlying plain data, reusing existing objects or arrays instead of cloning them when possible.
+- Frozen objects and arrays are shallow-copied before recursive unwrapping, while mutable ones are unwrapped in place.
 - Non-proxy input values are returned unchanged.
 
+Do not assume `unwrap` produces an isolated deep clone.
+
 ## Examples
 
 ### Basic usage