MAGETWO-85634: magento/magento2#12667: Incorrect partial attribute (EAV)...

MAGETWO-85634: magento/magento2#12667: Incorrect partial attribute (EAV) reindex (Update by Schedule) for configurable product with childs visibility 'Not Visible Individually' #1023

 - Merge Pull Request magento-engcom/magento2ce#1023 from RomaKis/magento2:12667
 - Merged commits:
   1. 585803ac

app/code/Magento/Catalog/Model/Indexer/Product/Eav/AbstractAction.php

@@ -143,6 +143,7 @@ abstract class AbstractAction
     protected function processRelations($indexer, $ids, $onlyParents = false)
     {
         $parentIds = $indexer->getRelationsByChild($ids);
+        $parentIds = array_unique(array_merge($parentIds, $ids));
         $childIds = $onlyParents ? [] : $indexer->getRelationsByParent($parentIds);
         return array_unique(array_merge($ids, $childIds, $parentIds));
     }

app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Eav/AbstractActionTest.php

@@ -129,8 +129,9 @@ class AbstractActionTest extends \PHPUnit\Framework\TestCase
             ->disableOriginalConstructor()
             ->getMock();
 
-        $eavSource->expects($this->once())->method('getRelationsByChild')->with($childIds)->willReturn($childIds);
-        $eavSource->expects($this->once())->method('getRelationsByParent')->with($childIds)->willReturn($parentIds);
+        $eavSource->expects($this->once())->method('getRelationsByChild')->with($childIds)->willReturn($parentIds);
+        $eavSource->expects($this->once())->method('getRelationsByParent')
+            ->with(array_unique(array_merge($parentIds, $childIds)))->willReturn($parentIds);
 
         $eavDecimal->expects($this->once())->method('getRelationsByChild')->with($reindexIds)->willReturn($reindexIds);
         $eavDecimal->expects($this->once())->method('getRelationsByParent')->with($reindexIds)->willReturn([]);