handleVariableBurst bug

[trykovyura]

com.vaadin.terminal.gwt.server.AbstractCommunicationManager handleVariableBurst
WARNING: Warning: Ignoring variable change for non-existent component, VAR_PID=***

Using vaadin 6.8.4
expanding - 0.1

This component causing error in my app. Widgeset is compiled.
This error fired when i removing component.
In my app i am using navigator7 addon so i have several pages.
When i move from one page to another and focus expanding component and then moving back i get this error. Before each page init i fire remoAllComponents from it. When i am using native textarea there is no problem.