Item Shop Validation

This probably effects at least the entire v1.3.x line if not even earlier.

By simply right-clicking and inspecting the quantity field element on the shop page, a user can change the item name field client side and buy items that don't belong to that shop - or any shop, for that matter - so long as they know it's name. Therefore, validation is necessary to confirm that the item does belong in the shop.

In classes/class_itemshop.php, down in public function purchase(), you'll want to fix this.

After $mysidia = Registry::get("mysidia"); you'll want to wrap the rest of the contents in:

And close the else right before return $status;.