Stock Manager affecting 'add to cart' action for Anonymous users

I am having the exact same issue and it is easily reproducable. When Stock Manager is enabled anonymous checkout does not work. When it is disabled it works. I am using Ubercart 2.3 and the latest dev of Ubercart Marketplace.

Hi i found problem.
This module use uc_cart_get_contents to get items from cart, but in uc_cart module this function make a little thing:

if (empty($items[$cid]) && isset($_SESSION['uc_cart_id'])) {
      // As their cart is now empty, there is no need to keep the cart ID in the session anymore
      unset($_SESSION['uc_cart_id']);
    }

Thats why ufter using this function uc_cart_id was delete, and all cart content was lost.

Solution:
I dont want change uc_cart module, thats why i make copy of uc_cart_get_contents without this no need code and put it to our uc_multi_stock module.
here is

function uc_multi_stock_gett_contents($cid = NULL, $action = NULL) {
  static $items = array();

  $cid = $cid ? $cid : uc_cart_get_id(FALSE);

  // If we didn't get a cid, return empty.
  if (!$cid) {
    return array();
  }

  if ($action == 'rebuild') {
    unset($items[$cid]);
  }

  if (!isset($items[$cid])) {
	  
    $items[$cid] = array();
    $result = db_query("SELECT c.*, n.title, n.vid FROM {node} n INNER JOIN {uc_cart_products} c ON n.nid = c.nid WHERE c.cart_id = '%s'", $cid);

    while ($item = db_fetch_object($result)) {
      for ($i = 0; $i < count($items[$cid]); $i++) {
        if ($items[$cid][$i]->nid == $item->nid && $items[$cid][$i]->data == $item->data) {
          $items[$cid][$i]->qty += $item->qty;
          continue 2;
        }
      }
	   
      $product = node_load($item->nid);
      $item->cost = $product->cost;
      $item->price = $product->sell_price;
      $item->weight = $product->weight;
      $item->data = unserialize($item->data);
      $item->module = $item->data['module'];
      $item->model = $product->model;

      // Invoke hook_cart_item() with $op = 'load' in enabled modules.
      foreach (module_list() as $module) {
        $func = $module .'_cart_item';
        if (function_exists($func)) {
          // $item must be passed by reference.
          $func('load', $item);
        }
      }
      $items[$cid][] = $item;
    }

    // Allow other modules a chance to alter the fully loaded cart object.
    drupal_alter('uc_cart', $items[$cid]);
    
  }

  return $items[$cid];
}

And change usage of uc_cart_get_contents to uc_multi_stock_gett_contents:

// get the product quantities already in the cart
$items = uc_multi_stock_gett_contents();

Hi,
Is this fix committed already?
Thanks a lot in advance,
greetings,
Martijn

I can't reproduce this issue with Ubercart 2.4. In Ubercart 2.3 there were issues with the cart ID, but these should have been resolved in 2.4...

Hi Alun, Any time may be for the patch please?
Thanks a lot in advance for your response.
greetings, Martijn