"Argument 'foo' was not set" after update to 4.1 in Cake Frosting

[pascalberger]

Having the following code in a Cake Frosting project:

var value = context.Argument<string>("foo");

When running Cake with --foo=bar it worked in 4.0, but with 4.1 an Argument 'foo' was not set error is thrown.

See https://github.com/pascalberger/cake-4373 for a repro.

[pascalberger]

Workaround:

var value = context.Argument<string>("--foo");

[devlead]

Yip, but this is a bug.

[devlead]

Won't work in 4.2.

[pascalberger]

Issue has been fixed in 4.2 which is now available