Property propagation to anonymous children only needed by old multicol.

Source/core/rendering/RenderObject.cpp

Index: Source/core/rendering/RenderObject.cpp
diff --git a/Source/core/rendering/RenderObject.cpp b/Source/core/rendering/RenderObject.cpp
index 0186feb8cbcd223be39405970e32c2e8f87baa64..c194974125f738e0fb808376576cdb08e301e0d3 100644
--- a/Source/core/rendering/RenderObject.cpp
+++ b/Source/core/rendering/RenderObject.cpp
@@ -2253,11 +2253,13 @@ void RenderObject::propagateStyleToAnonymousChildren(bool blockChildrenOnly)
             continue;
 
         RefPtr<RenderStyle> newStyle = RenderStyle::createAnonymousStyleWithDisplay(style(), child->style()->display());
-        if (style()->specifiesColumns()) {
-            if (child->style()->specifiesColumns())
-                newStyle->inheritColumnPropertiesFrom(style());
-            if (child->style()->columnSpan())
-                newStyle->setColumnSpan(ColumnSpanAll);
+        if (!document().regionBasedColumnsEnabled()) {
+            if (style()->specifiesColumns()) {
+                if (child->style()->specifiesColumns())
+                    newStyle->inheritColumnPropertiesFrom(style());
+                if (child->style()->columnSpan())
+                    newStyle->setColumnSpan(ColumnSpanAll);
+            }
         }
 
         // Preserve the position style of anonymous block continuations as they can have relative position when