"Invalid property 'businessPhones' specified in $select." on querying for a user's membership of a group in v5

Describe the bug
In v4 the following request was allowed (i.e. it was not a bad request):-

// v4 - this works
await _graphClient.Groups[targetGroup.Id].Members[user.Id].Request().GetAsync();

If this request succeeded, you could count on the indicated user being a member of the indicated group.

Removing Request() from the above results in code that doesn't compile, so I used:-

// v5 - this doesn't work
await _graphClient.Groups[targetGroup.Id].Members[user.Id].GraphUser.GetAsync();

but this code throws an ODataError exception (so it really should be called ODataErrorException but that's another story) with a bad request error message:-

"Invalid property 'businessPhones' specified in $select."

What is strange is that the v5 request to determine if a group (as opposed to a user) is a member of a group is fine, and doesn't result in a bad request:-

// v5 - this works
await _graphClient.Groups[targetGroup.Id].Members[group.Id].GraphGroup.GetAsync();

To Reproduce
In version 5.7.0 of Microsoft.Graph package, execute:-

await _graphClient.Groups[targetGroup.Id].Members[user.Id].GraphUser.GetAsync();

Expected behavior
No exception thrown, and certainly not an OData exception indicating a bad request with error message "Invalid property 'businessPhones' specified in $select.".

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Edge

Start by running the version 5.7.0 reproduction with Groups[targetGroup.Id].Members[user.Id].GraphUser.GetAsync(), then compare it with the working GraphGroup.GetAsync() call. Trace the request generated by GraphUser.GetAsync and verify that the membership query no longer selects the invalid businessPhones property; the user membership lookup should complete without an ODataError.