[asdf-devel] Dependency does not trigger recompilation

I apologize in advance for the stupid newbie question that follows.

I have the two systems below. When I change a file in cl-farm, it recompiles it, but when I demand loading of cl-farm-test again, ASDF does not recompile it, even though its dependency has changed. Why? Is this expected.

This all is based on the latest ASDF from git, invoked from Slime (but I do not think this makes a difference)

Juanjo

(defsystem :cl-farm :serial t :components ((:file "package") (:file "machines")))

(defsystem :cl-farm-test :depends-on (:rt :cl-farm) :serial t :components ((:file "tests/package") (:file "tests/files") (:file "tests/run")))