made more attributes nillable

Author: Tommy Quissens

app/code/Magento/Catalog/Model/ImageExtractor.php

@@ -32,16 +32,16 @@ public function process(\DOMElement $mediaNode, $mediaParentTag)
                     continue;
                 }
                 $attributeTagName = $attribute->tagName;
-                if ($attributeTagName === 'background') {
-                    $nodeValue = $this->processImageBackground($attribute->nodeValue);
-                } elseif ($attributeTagName === 'width' || $attributeTagName === 'height') {
-                    if ((bool)$attribute->getAttribute('xsi:nil') !== true) {
-                        $nodeValue = intval($attribute->nodeValue);
+                if ((bool)$attribute->getAttribute('xsi:nil') !== true) {
+                    if ($attributeTagName === 'background') {
+                        $nodeValue = $this->processImageBackground($attribute->nodeValue);
+                    } elseif ($attributeTagName === 'width' || $attributeTagName === 'height') {
+                            $nodeValue = intval($attribute->nodeValue);
                     } else {
-                        $nodeValue = null;
+                        $nodeValue = $attribute->nodeValue;
                     }
                 } else {
-                    $nodeValue = $attribute->nodeValue;
+                    $nodeValue = null;
                 }
                 $result[$mediaParentTag][$moduleNameImage][Image::MEDIA_TYPE_CONFIG_NODE][$imageId][$attribute->tagName]
                     = $nodeValue;

lib/internal/Magento/Framework/Config/etc/view.xsd

@@ -55,7 +55,7 @@
                         <xs:element name="aspect_ratio" type="xs:boolean" minOccurs="0" nillable="true"/>
                         <xs:element name="frame" type="xs:boolean" minOccurs="0" nillable="true"/>
                         <xs:element name="transparency" type="xs:boolean" minOccurs="0" nillable="true"/>
-                        <xs:element name="background" minOccurs="0">
+                        <xs:element name="background" minOccurs="0" nillable="true">
                             <xs:simpleType>
                                 <xs:restriction base="xs:string">
                                     <xs:pattern value="\[(\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\]"/>