diff --git a/rust/hg-cpython/src/dirstate/dirstate_map.rs b/rust/hg-cpython/src/dirstate/dirstate_map.rs
--- a/rust/hg-cpython/src/dirstate/dirstate_map.rs
+++ b/rust/hg-cpython/src/dirstate/dirstate_map.rs
@@ -401,7 +401,9 @@
             .copy_map_remove(HgPath::new(key.data(py)))
             .map_err(|e| v2_error(py, e))?
         {
-            Some(_) => Ok(None),
+            Some(copy) => Ok(Some(
+                PyBytes::new(py, copy.as_bytes()).into_object(),
+            )),
             None => Ok(default),
         }
     }