app-addons-rma-func.php.diff

diff --git a/app/addons/rma/func.php b/app/addons/rma/func.php
index b72f699cb2..f0ee3cb824 100644
--- a/app/addons/rma/func.php
+++ b/app/addons/rma/func.php
@@ -1194,3 +1194,30 @@ function fn_rma_get_returns($params, $items_per_page = 0, $lang_code = CART_LANG
 
     return array($return_requests, $params);
 }
+
+/**
+ * The "form_cart_pre_fill" hook handler.
+ *
+ * Actions performed:
+ *  - Removes info about returns if order is copied
+ *
+ * @see fn_form_cart()
+ */
+function fn_rma_form_cart_pre_fill($order_id, $cart, $auth, &$order_info, $copy)
+{
+    if (!$copy || empty($order_info['products'])) {
+        return;
+    }
+
+    foreach ($order_info['products'] as &$product) {
+        if (empty($product['returns_info'])) {
+            continue;
+        }
+
+        unset($product['returns_info']);
+        if (!empty($product['extra']['returns'])) {
+            unset($product['extra']['returns']);
+        }
+    }
+    unset($product);
+}
\ No newline at end of file

app-addons-rma-init.php.diff

diff --git a/app/addons/rma/init.php b/app/addons/rma/init.php
index 1fe2ce8054..4a9ff3dca3 100644
--- a/app/addons/rma/init.php
+++ b/app/addons/rma/init.php
@@ -25,5 +25,6 @@ fn_register_hooks(
     'get_status_params_definition',
     'delete_order',
     'paypal_get_ipn_order_ids',
-    'reorder_product'
+    'reorder_product',
+    'form_cart_pre_fill'
 );

app-functions-fn.cart.php.diff

diff --git a/app/functions/fn.cart.php b/app/functions/fn.cart.php
index 457b3d37ed..f2ca576bf8 100644
--- a/app/functions/fn.cart.php
+++ b/app/functions/fn.cart.php
@@ -6121,10 +6121,13 @@ function fn_add_product_to_cart($product_data, &$cart, &$auth, $update = false)
 
 /**
  * Forms cart based on order
- * @param integer $order_id order ID
- * @param array &$cart cart
- * @param array &$auth auth info
- * @param boolean $copy if true, create new order, otherwise edit
+ *
+ * @param integer $order_id Order ID
+ * @param array   $cart     Cart
+ * @param array   $auth     Auth info
+ * @param bool    $copy     True if creating new order, otherwise edit
+ *
+ * @return bool True if success, false otherwise
  */
 function fn_form_cart($order_id, &$cart, &$auth, $copy = false)
 {
@@ -6143,8 +6146,9 @@ function fn_form_cart($order_id, &$cart, &$auth, $copy = false)
      * @param array $cart       Cart data
      * @param array $auth       Auth information
      * @param array $order_info Order info
+     * @param bool  $copy       If true, create new order, otherwise edit
      */
-    fn_set_hook('form_cart_pre_fill', $order_id, $cart, $auth, $order_info);
+    fn_set_hook('form_cart_pre_fill', $order_id, $cart, $auth, $order_info, $copy);
 
     // Fill the cart
     foreach ($order_info['products'] as $_id => $item) {