Project transfer keeps project member permissions

Summary

When transferring a project to a group that I have owner permissions, my project permission level is set to maintainer.

Steps to reproduce

1. Take a project in which you are a maintainer
2. Transfer the project to a group in which you are an owner
3. Project member permissions for me are set to maintainer when I have owner permission in group

What is the current bug behavior?

Project permissions are inherited for group owners.

What is the expected correct behavior?

Group members with owner permissions should have owner permission on the transferred project.

Customer ticket -> https://gitlab.zendesk.com/agent/tickets/101196 (internal use)