I don't attach app, because sure, that it is actual for all applications.

Look at the attached movie. I show a text field, which shows state of pressed property. There is a CL - change listener counter and IL - invalidation listener counter for that property.

I start to try to expand/collapse nodes in the tree. Looking on the counters, you can see, that I click very many times, but only first click is processed. All other clicks are ignored. I need to change position, to get possibility to expand or collapse that node again.