sw_redlinehide_3: SetHideRedlines() must iterate doc when Show->Hide

Something must call AddToListRLHidden() on all the nodes.

Change-Id: Ibe23f499372b7fd07a2894ee3f90684d53d67aef

sw/source/core/layout/wsfrm.cxx

@@ -4437,7 +4437,8 @@ void SwRootFrame::SetHideRedlines(bool const bHideRedlines)
     }
     mbHideRedlines = bHideRedlines;
     SwDoc & rDoc(*GetFormat()->GetDoc());
-    if (rDoc.getIDocumentRedlineAccess().GetRedlineTable().empty())
+    if (!bHideRedlines // Show->Hide must init hidden number trees
+        && rDoc.getIDocumentRedlineAccess().GetRedlineTable().empty())
     {
         return;
     }