[Pharo-users] String readFrom: bug?

I think I've found a bug in String class>>readFrom:. This sentence fails: z := String readFrom: 'Good morning' readStream. I think that the bug is on the first line, saying: ^ self class streamContents:. The 'class' message shouldn't be here, because 'self' itself refers to the String class. Present in Pharo 2.0 and 3.0. Thanks a lot.