Hi folks,

I'm not sure if this intended but posting here for discussion. Assume a dune file:

(alias
 (name foo)
 (deps (source_tree dir)))

(rule
 (alias bar)
 (deps (alias foo))
 (action (with-stdout-to out (bash "cat dir/dep"))))

dune build @bar will build out correctly the first time; however it we update dir/dep out is not rebuilt.

Dune 2.5.1 (back to 2.1.1), OCaml 4.10, Linux