and whether the cached column info and cell map are valid when deciding whether we need a full reflow git-svn-id: svn://10.0.0.236/trunk@41973 18797224-902f-48f8-a5cc-f745e15eee43
and whether the cached column info and cell map are valid when deciding whether we need a full reflow git-svn-id: svn://10.0.0.236/trunk@41973 18797224-902f-48f8-a5cc-f745e15eee43