Merge pull request zendframework/zendframework#3468 branch 'hotfix/fi…

…x-variable' Close

src/Model/ViewModel.php

@@ -322,7 +322,7 @@ public function addChild(ModelInterface $child, $captureTo = null, $append = nul
         if (null !== $captureTo) {
             $child->setCaptureTo($captureTo);
         }
-        if (null !== $captureTo) {
+        if (null !== $append) {
             $child->setAppend($append);
         }