Light-Module descriptor not read when using sym links

Summary

If light-modules are added as symlinks to the magnolia.resources.dir, their module descriptors are not properly read. Defined dependencies are missing.

=> As a consequence, YAML !inherits fails when inheriting between light-modules.
(Because of this, i have created the ticket as a blocker)

To reproduce failure

(I)
Clone having-fun-with-yaml to /yours/dev/repo/having-fun-with-yaml

(II)
Set

magnolia.resources.dir=/yours/dev/lightmodules

(III)
In /yours/dev/lightmodules create these symlinks:

module-a -> ../repo/having-fun-with-yaml/light-modules/module-a/
module-b -> ../repo/having-fun-with-yaml/light-modules/module-b/

(IV)
Start magnolia; check the log after start or check the Definition app; both claim:

" (YAML dependency resolution) - Missing definition dependency
Problem details: Inherited definition at (module-a:components/a-component) either does not exist or is not loaded because of the missing module dependency in module (module-b), which currently depends only on () 2"

To verify that having-fun-with-yaml is ok:
(I)
see above:
(II) Set

magnolia.resources.dir=/yours/dev/repo/having-fun-with-yaml/light-modules

(III) Start the instance, this time it will work.