Linking a NuGet proxy repository in a group repo gives 403 when user has no permissions on proxy repository

We have the following setup:

• Proxy repo linking to the main nuget v3 feed
• Group repo containing the proxy repo
• Role with permissions on group repo (read, browse)

When we do a query on the group repo we get a 403 error.  The 403 error goes away when we also give read permission on the proxy repo.

Validate that this is only an issue with Nuget and nuget v3