rich:select - js error - this.cache is undefined (or similar js error)

To reproduce : 1. clic in a rich:select 2. type letters quickly in 3. It ends up with the error : TypeError: this .cache is undefined ---> var items = this .cache.getItems(inputLabel, this .filterFunction); It can be reproduced in the showcase http://showcase.richfaces.org/richfaces/component-sample.jsf?demo=select&skin=blueSky In this case, error is : TypeError: this .cache is undefined if ( this .enableManualInput){ var H= this .cache.getItems(K, this .filterFunction);