ItemCache#ensureSubCacheForScaledIndex method is changed by gridConnector, so it will make any grid on the page use the new implementation. That leads to a call from undefined object in case of a grid entirely defined on the client side needs to call this method.
This change stores the original implementation and calls it when the grid doesn't have a $connector object.
fix #1077
ItemCache#ensureSubCacheForScaledIndexmethod is changed bygridConnector, so it will make any grid on the page use the new implementation. That leads to a call from undefined object in case of a grid entirely defined on the client side needs to call this method.This change stores the original implementation and calls it when the grid doesn't have a
$connectorobject.