Importing project under a namespace is ignored

Summary

The namespace of an imported project is ignored. The project ends up under the user's namespace.

Steps to reproduce

1. import a project: specify the namespace for the project, i.e. group systems

Example Project

This is an imported project that should have been imported under the nelb namespace.

What is the current bug behavior?

The project ends up in the user's namespace

What is the expected correct behavior?

The project ends up in the group's namespace

Output of checks

This bug happens on GitLab.com

Screenshots

Importing test-imported-project under namespace nelb:

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The imported project ends up under nelbacha instead of nelb: https://gitlab.com/nelbacha/test-imported-project