Klaus D. Witzel wrote:
> Subject line says it all, check yourself,
> 
> (Heap withAll: 'array') reject: [:x | x = $r]
> 
> What's the rationale (there's no doc, no comment)? Archive shows that 
> #species was changed to fix another (anonymous) bug but, this way the 
> senders of #species can impossibly do what Smalltalk users expect from 
> the collection hierarchy (and there is #asArray ...)

You answered yourself as to the solution, which is to use #copyEmpty 
more even in Collection (especially in #select: and #reject:).  #species 
should be used only for #collect: (and even then, it only works by 
chance, i.e. because sorted collections' #collect: methods return 
something for which "self species new" is good enough).

There shouldn't be any need to define any #...ect: method except in 
Collection and ArrayedCollection.

Paolo