Yarn 2 "portal:" local components import compilation failure because of ModuleScopePlugin

Created by: jonenst

Describe the bug

Description here: https://stackoverflow.com/questions/61530712/module-not-found-error-using-yarn-2-to-link-react-components

TLDR: When adding "MyExternalComponent": "portal:../MyExternalComponent" dependencies to package.json, and importing the component with import Mycomponent from MyExternalComponent, the build fails because of the ModuleScopePlugin restriction "You attempted to import components which falls outside of the project src/ directory"

Which terms did you search for in User Guide?

"yarn 2 ModuleScopePlugin" "portal: ModuleScopePlugin"

Environment

yarn2

(paste the output of the command here.)

Steps to reproduce

(Write your steps here:)

1. create a package in folder Foo
2. yarn dlx create-react-app Bar
3. add "Foo": "portal:../Foo" to Bar's package.json 4 build Bar

Expected behavior

Should work

Actual behavior

compilation error: "You attempted to import components which falls outside of the project src/ directory"

Reproducible demo

https://bitbucket.org/cjmyles/yarn2-link/commits/e02b93771dfded0215bdba456d31aea011367807