[Pharo-users] Can a class be not equal to itself?

[Konrad Hinsen]

Hi everyone,

It's been a while since I have encountered mysterious behavior in Pharo, 
but today it happened. I set up a dictionary with classes as keys, and 
got "Key not found" errors for keys that were definitely in my 
dictionary. A quick debugging session showed the underlying issue: I had 
two references to a class which look the same when inspected, but turn 
out to be not identical (==) and thus not equal (=). How can this happen?


Konrad.