Bundle checkboxes now are checked when item edited from cart

Author: JosephMaxwell

app/code/Magento/Bundle/Block/Catalog/Product/View/Type/Bundle/Option.php

@@ -167,7 +167,9 @@ protected function _getSelectedOptions()
      */
     protected function assignSelection(\Magento\Bundle\Model\Option $option, $selectionId)
     {
-        if ($selectionId && $option->getSelectionById($selectionId)) {
+        if (is_array($selectionId)) {
+            $this->_selectedOptions = $selectionId;
+        } else if ($selectionId && $option->getSelectionById($selectionId)) {
             $this->_selectedOptions = $selectionId;
         } elseif (!$option->getRequired()) {
             $this->_selectedOptions = 'None';