NPM instance level packages registry wrongly fetch subgroups
Summary
In !53266 (merged), the instance level of the package registry has been modified to only return packages that follow the naming convention.
Among other things, the backend will extract the scope of the package name and look for a Group.
How the Group is searched is wrong: it also considers subgroups which should be excluded.
What is the expected correct behavior?
Only root namespaces should be considered by the NPM package registry.