[Borges-users] and some more on caching

[Слепнев Владимир]

I guess the problem with caching isn't the weak hash. 

My sample application is now just a tab panel. I've implemented it in 
two ways. The first way: when the user clicks a tab, the instance 
variable selected_tab is changed. (This has to be registered for 
backtracking.) The second way: when the user clicks a tab, the 
controller calls a new delegate. (No registering for backtracking - it 
isn't needed.) Both hog the memory.

Vladimir Slepnev

P.S. I can't understand the weak identity key hash. Why are the keys 
weak references, and not the values?