[Pharo-users] Symbol equality method #= - weird condition in the Pharo sourcecode

[Petr Fischer via Pharo-users]

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Hello, this is Symbol equality method in Pharo:

1: = aSymbol
2:      "Compare the receiver and aSymbol." 
3:      self == aSymbol ifTrue: [^ true].
4:      self class == aSymbol class ifTrue: [^ false].
5:      "Use String comparison otherwise"
6:      ^ super = aSymbol

Look at line 4 - what does it mean? That's wrong, isn't it?

Typically, every symbol comparisons end up in line 3, but if you do some work 
with forward proxies for example, condition on line 3 is "false" and then weird 
things on line 4 happens.

If line 4 and further are correct, can someone explain a little?

Thanks! pf

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