`TypeError: Cannot read properties of undefined` in members page

Summary

In the Project/Group members page, the following error is logged to the console

TypeError: Cannot read properties of undefined (reading 'namespace')

Steps to reproduce

Go to any group/members page with the browser's console open.

Example Project

Any project.

What is the current bug behavior?

Error logged to the console.

What is the expected correct behavior?

No error.

Relevant logs and/or screenshots

Possible fixes

See https://github.com/vuejs/vue-apollo/pull/1153 and example of fix in http://gitlab.com/gitlab-org/gitlab/blob/f109f9142e0f4e10cde0066d13121089617693e1/app/assets/javascripts/vue_shared/components/vuex_module_provider.vue#L8-8