MCP-549 Investigate possible improvements with enabled rules processing

Author: vzabaznov

app/code/Magento/Quote/Model/Quote/QuantityCollector.php

@@ -24,40 +24,32 @@ class QuantityCollector
      */
     public function collectItemsQtys(Quote $quote)
     {
-        if (!isset($this->quoteCache[$quote->getEntityId()])) {
-            $quoteItems = $quote->getAllVisibleItems();
-            $quote->setItemsCount(0);
-            $quote->setItemsQty(0);
-            $quote->setVirtualItemsQty(0);
-
-            foreach ($quoteItems as $item) {
-                if ($item->getParentItem()) {
-                    continue;
-                }
+        $quoteItems = $quote->getAllVisibleItems();
+        $quote->setItemsCount(0);
+        $quote->setItemsQty(0);
+        $quote->setVirtualItemsQty(0);
+
+        foreach ($quoteItems as $item) {
+            if ($item->getParentItem()) {
+                continue;
+            }
 
-                $children = $item->getChildren();
-                if ($children && $item->isShipSeparately()) {
-                    foreach ($children as $child) {
-                        if ($child->getProduct()->getIsVirtual()) {
-                            $quote->setVirtualItemsQty(
-                                $quote->getVirtualItemsQty() + $child->getQty() * $item->getQty()
-                            );
-                        }
+            $children = $item->getChildren();
+            if ($children && $item->isShipSeparately()) {
+                foreach ($children as $child) {
+                    if ($child->getProduct()->getIsVirtual()) {
+                        $quote->setVirtualItemsQty($quote->getVirtualItemsQty() + $child->getQty() * $item->getQty());
                     }
                 }
-
-                if ($item->getProduct()->getIsVirtual()) {
-                    $quote->setVirtualItemsQty($quote->getVirtualItemsQty() + $item->getQty());
-                }
-                $quote->setItemsCount($quote->getItemsCount() + 1);
-                $quote->setItemsQty((float)$quote->getItemsQty() + $item->getQty());
             }
 
-            $this->quoteCache[$quote->getEntityId()] = $quote;
-
-            return $quote;
+            if ($item->getProduct()->getIsVirtual()) {
+                $quote->setVirtualItemsQty($quote->getVirtualItemsQty() + $item->getQty());
+            }
+            $quote->setItemsCount($quote->getItemsCount() + 1);
+            $quote->setItemsQty((float)$quote->getItemsQty() + $item->getQty());
         }
 
-        return $this->quoteCache[$quote->getEntityId()];
+        return $quote;
     }
 }