livingsocial/rake-pipeline — comment on commit 99c0b0f117d30da3b3eefd027d254ab2e26bee1e
File: lib/rake-pipeline/dsl.rb line 56
By jamesarosen:

Sadly, while this allows multiple roots, the last glob pattern wins. The behavior that I expect is that they come in pairs -- each glob is only applied to the input root that came with it.