Additional checks for fragments added in category tree

Author: rogyar

app/code/Magento/CatalogGraphQl/Model/AttributesJoiner.php

@@ -28,6 +28,10 @@ public function join(FieldNode $fieldNode, AbstractCollection $collection) : voi
 
         /** @var FieldNode $field */
         foreach ($query as $field) {
+            if ($field->kind === 'InlineFragment') {
+                continue;
+            }
+
             if (!$collection->isAttributeAdded($field->name->value)) {
                 $collection->addAttributeToSelect($field->name->value);
             }

app/code/Magento/CatalogGraphQl/Model/Category/DepthCalculator.php

@@ -26,6 +26,10 @@ public function calculate(FieldNode $fieldNode) : int
         $depth = count($selections) ? 1 : 0;
         $childrenDepth = [0];
         foreach ($selections as $node) {
+            if ($node->kind === 'InlineFragment') {
+                continue;
+            }
+
             $childrenDepth[] = $this->calculate($node);
         }
 

app/code/Magento/CatalogGraphQl/Model/Resolver/Products/DataProvider/CategoryTree.php

@@ -143,6 +143,10 @@ private function joinAttributesRecursively(Collection $collection, FieldNode $fi
 
         /** @var FieldNode $node */
         foreach ($subSelection as $node) {
+            if ($node->kind === 'InlineFragment') {
+                continue;
+            }
+
             $this->joinAttributesRecursively($collection, $node);
         }
     }