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The attached file, when compiled under the Mono C# compiler version 126.96.36.199, produces the following output:
While the result indeed mimics .NET's behaviour it is clear that there was a design error (at least according to people on SO), since it is expected for closures in that case to enclose on _different_ variables. Microsoft has recently changed the implementation of foreach and the behaviour is no longer perplexing in VS11.
I do understand that patching foreach might break some backward compatibility in theory, but in practice I can't honestly find a usecase for this (e.g.: when you need all of your closures to be enclosed on one variable with the last value).
Please pardon my English as I am not a native speaker.
Created attachment 1494 [details]
Fixed in master