qbs.architectures property became undefined

in commit 38c897a0d45af8817df2756bc8f7e4489f21cf86 default value of qbs.architectures property has changed, but documentation still says that:

 Default: ["armv5te"] on Android, same as Xcode on Apple platforms, otherwise equivalent to [qbs.architecture].

so how this property should be used? am i right that it should be used for multiplex build and set in profile?