Whitespace only text nodes need to be reattached when their siblings are reattached

LayoutTests/css3/flexbox/flex-flow-margins-auto-size-expected.txt

Index: LayoutTests/css3/flexbox/flex-flow-margins-auto-size-expected.txt
diff --git a/LayoutTests/css3/flexbox/flex-flow-margins-auto-size-expected.txt b/LayoutTests/css3/flexbox/flex-flow-margins-auto-size-expected.txt
index 3aead6f411f67875642dfe5c966c57d4dacd9ec1..156bc4d79727f79c2ca0b3f14869d97aa36bf8d7 100644
--- a/LayoutTests/css3/flexbox/flex-flow-margins-auto-size-expected.txt
+++ b/LayoutTests/css3/flexbox/flex-flow-margins-auto-size-expected.txt
@@ -142,4 +142,3 @@ Expected 90 for width, but got 60.
 <div class="container" data-expected-width="90" data-expected-height="90"><div class="flexbox vertical-rl ltr column-reverse" data-offset-x="40" data-offset-y="10">
 <div style="-webkit-flex: 1 auto; width: 20px; height: 20px;" data-expected-width="20" data-expected-height="20" data-offset-x="48" data-offset-y="23"></div>
 </div></div>
-